Larian Studios
Posted By: owenscowen THE LAUNCHER HAS A DATA MISMATCH ERROR - 15/02/22 11:42 PM
The Launcher gives this error so I followed the support link and followed the directions to verify the data. I did so three times on Steam. All three times, all files were verified as Good. I have been able to play as a Barbarian up to when I find and talk to Shadowheart in the shell before saving her (no further spoilers). From what I can tell from the support page, I should be crashing at game launch and not even able to play.

Normally I would delete the entire game and re-install BUT I have a fast computer, very fast internet and yet even though I downloaded the game within 15 minutes, maybe 10, it took an hour to write to my SSD drive. I want to play, not wait, 24 hours while the game has to download and reinstall from scratch when it takes that long to write to file. Then again now that I think about it.... that may have been part of the issue of why it's seeing a mismatch error. It should Not have taken that long to write 35Gigs to this Hard Drive.

Am I wrong?

Could the Launcher be incorrect or should I do a full clean re-install just to be sure I have no glitches?
I'm having the same issue. I did a full clean re-install yet it's still persisting.

I did have mods installed in Patch 6. But I uninstalled and Deleted them. I Re-installed the game. And I verified Steam Files. Yet it doesn't go away, my game crashes before I even get to the Main Menu. I'm at a loss on what to do at this point.
Posted By: WebSpyder Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 12:36 AM
Same here. I have never installed a single mod at all. I even went so far as to completely remove all of my old profiles yet somehow it still sees them. Files also verified through Steam. Not sure what else to even try at this point.
Posted By: dbarron Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 12:39 AM
I nuked my hard drive (accidentally), so did a full re-install and still have this issue on GOG also. I wondered if it were gog saves? Note, the windows system disk did not get wiped, just the data disk where I had the game installed.
When I got into the game, I have a premade party of dummies and (at least initially) polygons for my surroundings.
Posted By: sol iman Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 01:15 AM
I got the same issue. I can get into the game, but when I do the UI is messed up and I can't access inventory or the character sheet. Had mods, but deleted them. Verified files, reinstalled, scrubbed every folder for mod files that I could think of but nothing is working.
Posted By: hellfrog Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 02:38 AM
Same. Deleted mods, deleted all old saves and profile, did 2 uninstall/reinstall, and still get this message. Many sliders in CC freeze when I try to move them. In-game, the hotbar entirely disappears somewhere on the nautiloid. I assume there will be a hotfix soon.

Tested it - the hotbars/turn based mode HUD elements disappear after any cutscene. So after you get Us, or if you run past them, after you talk to Lae'zel.
Posted By: dudeface Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 02:51 AM
Based on what you guys are saying and my own experience I think there may be an issue with cloud saves messing up the game. For me it's making the UI go wacky
Posted By: Thespen Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 06:18 AM
Same here with the error message, I've verified my files with no issues found and never used mods.

Not had any issues in game yet, so keeping fingers cross Larian will fix before I do.
Posted By: dbarron Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 07:20 AM
I deleted HF files as mentioned in the launcher troubleshooter. Then game wouldn't launch.
Then I repaired it. Then I created a new profile, and game launched normally to character creation.
Same issue here, with a BRAND NEW laptop. Nothing installed yet (not even office stuff), BG3 was first and only download from steam.
Files were also verified through Steam, no issues found.
But i can't start the game and get the above mentioned notice.
I am now deinstalling all and giving it another try (8 hours to completely install).
Posted By: WebSpyder Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 08:22 AM
Originally Posted by dudeface
Based on what you guys are saying and my own experience I think there may be an issue with cloud saves messing up the game. For me it's making the UI go wacky

I have never utilized cloud saves for BG3.
Posted By: Maximuuus Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 09:22 AM
Same here. I sued mod with the patches 1-4 but never after patch 5 and also have the issue.
My saves during patch 6 were "corrupted" (message while loading) biut I did not have any problems.

Here I also have the message in the launcher, but it looks okay in game.
Posted By: Kaybris Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 10:47 AM
Hi,

So I updated to patch 7 and unfortunately the game crashes every time I try to customize my character. As soon as I try changing the hair style or facial hair a few times, the game crashes. frown
I tried both Vulkan and DirectX, both crashes.

I uninstalled the game and deleted all the folders, redownloaded through Steam. Still the game crashes.

If I skip the character customization altogether and start the game with a default looking character, the game seems to run fine.
Had the same issue on GOG. Clicked on the "settings" button next to Play button, and selected Verify/Repair (or whatever it says). It's still showing the mismatch message, but the game is running fine as always. But I'm still at the Nautiloid, just past the three first Imp enemies. Saved and quicksaved a bunch. No issues yet. Will continue tomorrow.
Posted By: dudeface Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 12:37 PM
Originally Posted by SNEAKYZACK
I had the same issue and was able to fix it by deleting the Larian Studios folder in the appdata>local folder then relaunching the game


This fixed this issue for me
Posted By: Hoppa Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 12:44 PM
Originally Posted by dudeface
Originally Posted by SNEAKYZACK
I had the same issue and was able to fix it by deleting the Larian Studios folder in the appdata>local folder then relaunching the game


This fixed this issue for me

Fixed a lot for me. Wasn't even able to start, not after clean install.
Even reinstalled steam, changed the install folder, and various things more. All to no avail.
I noticed I had a folder named 'LarianStudio' and one named 'Larian Studio'.
Don't know how that came to be, certainly not my doing, but after removing both evrything worked fine.
After reinstalling everything, the problem still persists , and strangely looks like graphics issue...

Problem:
1) at Larian startup screen (through steam), i get a red warning triangle telling me:
"We've detected a data mismatch..."
2) ignoring above warning, when starting the game anyways with power cable attached, it is crashing right after selecting video type Vulcan with several Larian popup windows (invalid data and file verification issue), while it is working after selecting Directx, however with DirectX i get a resolution distortion (screen too broad)

System: virgin (brandnew) laptop (Nvidia GeForce RTX 3060 6GB, Windows 10 home).
No other programs installed.
Steam installation w/o problems.
First installation of BG3 was done right after patch7 release.

After receiving the issue from above i followed the advices (verified integrity of game files through steam, no Files named Patchxxxx in my BG3 folder, no mods installed ever), i deleted BG3 and started a new download.

No change.

what is very strange : When disconnecting power cable i can play the game also on Vulcan (with correct screen width, on directx it is still set too broad).

deleting the Larian Studios folder in appdata (like adviced in the former post) did not help, i had to make another profile and received warning/crashes again

any ideas how to continue? (already contacted Larian in their bug/ticket service)
Posted By: Kaybris Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 01:36 PM
Fixed it for me as well. Thanks!
Posted By: RutgerF Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 16/02/22 01:44 PM
Same here with GOG, never had any mods. Selective cleaning of "AppData\Local\Larian Studios" folder didn't help (didn't want to delete it, as I'm 10 hours into a new playthrough already). No issues with the game itself, just this pesky warning in the launcher.

Considering how many people are reporting it, it's got to be a false positive - wrong checksums rather than corrupted files, for example.
Same issues, deleting the folders suggested here and by Larian did not fix.
Same here, multiples install, even deleted everything. The trouble begun with installing the patch on Steam, it taked forever and maybe froze.
I have tried re-loading several time and have verified all the files several times, have never loaded a MOD. Have gone back to earlier saves but the game keeps crashing on last fight of nautiloid. Please fix this, there is nothing I have done wrong from my end. Also love the Barbarian but until you add level 5 we will never be able to test perhaps the biggest milestones in the game.
I am having this same issue as well - however, deleting the Larian Studio / Steam BG3 files did nothing. All settings are on their lowest, etc. And it always crashes exactly when I start choosing hair options, it is not by coincidence. It ran fine for many hours yesterday, when I was playing Patch 6. I am at a loss.
Having same issue, ran perfectly fine until I got to the daytime scene after Astarion's Bite. Tried to swap his armor, crashed to desktop. Deleting the recommended files did nothing, and the files were verified before launching the game proper. The crash said it was due to mismatch, even though everything should be fine. This needs an immediate fix and fast.
Originally Posted by philalethistry
I am having this same issue as well - however, deleting the Larian Studio / Steam BG3 files did nothing. All settings are on their lowest, etc. And it always crashes exactly when I start choosing hair options, it is not by coincidence. It ran fine for many hours yesterday, when I was playing Patch 6. I am at a loss.

So I found, after uninstalling/reinstalling again, files labelled Profile 6 inside the Larian Studio file in appdata/local. After deleting those specifically (instead of the whole file), I was forced to make a new profile, but I finally got past character creation. However, the game did crash a few moments after I started exploring the Nautiloid ship, with the same message about corrupted data afterwards...
I had the same issue, tried a gog galaxy install didn't work, steam install also didn't work. Always had the same warning in Larian Launcher even though I never installed mods and verified the files a few times. What worked for me was browsing to BG3 installation folder and launching bg3.exe, this bypasses the larian launcher and I don't think you can play online with it but it works fine for me. Relaunched game 3 times and no problems. bg3_dx11.exe still freezes for whatever reason so I don't use that.
Originally Posted by aldrigsova
I had the same issue, tried a gog galaxy install didn't work, steam install also didn't work. Always had the same warning in Larian Launcher even though I never installed mods and verified the files a few times. What worked for me was browsing to BG3 installation folder and launching bg3.exe, this bypasses the larian launcher and I don't think you can play online with it but it works fine for me. Relaunched game 3 times and no problems. bg3_dx11.exe still freezes for whatever reason so I don't use that.

Interesting! Thanks for the tip. I'm on GOG and did everything that the larian support page says - message still there on the launcher. But so far, ZERO problems. This is too weird, everyone's computer is reacting differently, other than everyone getting that message.

So far, (I'm in the Dank Crypt, where you find Withers, but before doing the Grove's First battle) I've had no problems or any crashes at all.... but I cannot for the life of me get rid of that damned message.
Dear Larian,

Thank you for all the hard work! I'm having so much, and it looks wonderful. This CRPG will be one for the History books. It has the potential to be the best ever made.

Small thing (not to be repetitive, but I want to keep bumping this): the "Data Mismatch" message in the GOG launcher. I did everything the Support Page says, but the message is still there. HOWEVER, no issues or crashes at all, so.... I dunno, everything is working fine so far. I'm in the Dank Crypt, before the first battle in the Grove. Everyone's computers seem to be reacting differently though.... so it's a weird issue.

I'm sure you guys are looking into it, so thanks again, but other than the info in the support page does anyone know what might be causing this yet?
Never had any mods. Reinstalled several times. Deleted every file and folder that has to do with the game. No cloud saves. Can't even start the game! At all! I'm pretty disappointed.
I had Steam set to install patch 2 for some reason. Switched to 'none' and that fixed it.
Posted By: TheHero Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 17/02/22 07:25 PM
Cant get rid of that message after trying all from the support page.
Games crashing mostly at laoding saved games. Especially irritating when exploring or savescumming for battles.
Okay, so for me in C:\Users\<account>\AppData\Local, i had "LarianStudios" from patch 6 and "Larian Studios" from patch 7.
Delete LarianStudios it is the oldest. That's the fix wink
Posted By: TheHero Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 18/02/22 06:08 PM
Originally Posted by TheHero
Cant get rid of that message after trying all from the support page.
Games crashing mostly at laoding saved games. Especially irritating when exploring or savescumming for battles.

Update:
After i deleted all old crashdumpfiles and related files for crashdumps, in that folder where they are saved and are related to Patch 6 and older, fixed the Data Mismatch Error in Launcher for me.



Still... the problem when ingame and played for some time, made savegames too, i still have the problem when loading a prior or just new savegame, the game crashes anyway.
Though i can load save games just as normal at the Main menu after i restartet the whole game.
Maybe (not testet yet) going back to main menu and loading from there will be a workaround for timebeeing...will try that in a moment.
Ok, I got it fixed. What did it for me, after doing everything that Larian mentioned 3 days ago, was this added bit:

"delete the modsettings.lsx file in the profile folder (EVEN IF you had no MODS installed like me), if you're not using a new profile for the current patch (which I wasn't).
With patch 7, rather than My Documents, the game uses the local appdata folder for the current user account: 'C:\Users\<UserName>\AppData\Local\Larian Studios\Baldur's Gate 3'. The easiest way to get to the profile folders would be to copy the line below into the location bar in Explorer, hit Enter and browse down from there (or on the same level for the '..\Baldur's Gate 3\Mods' folder).
%LocalAppData%\Larian Studios\Baldur's Gate 3\PlayerProfiles

After that, I went to GOG and verified/repaired in the Manage instalation menu (next to the play button). Miracle! The mismatch message is now gone!
Posted By: Saberem Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 19/02/22 08:16 AM
For Steam: Delete/Rename the Steam/UserData/<UserID>/1086940 Folder will fix the data mismatch error
Posted By: Thespen Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 19/02/22 05:41 PM
I no longer get the message, nothing I did, must have been the Larian good fairies during the night smile
Posted By: TheHero Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 24/02/22 04:43 PM
Interessting, for some days the mismatch error was gone, even after Hotfix 20.
Today i start the launcher and it is back.
Mismatching whatever it is.
I could get rid of it by deleting all the Crashdumpfiles and related Files to it last time. Now this didnt even worked out.

Update:
So the Launcher checks all Files in the folder and what i could find is that the dxdiag.xml File i renamed with adding _bkuptest

"dxdiag.xml_bkuptest"

was making the launcher spit out the mismatch Error.

So to speak, never ever rename files and let them stay in that folder. REmove them from Game folders totally so the check of the launcher stays clean of error mismatch file message.
Posted By: RutgerF Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 24/02/22 10:46 PM
Originally Posted by TheHero
So to speak, never ever rename files and let them stay in that folder. REmove them from Game folders totally so the check of the launcher stays clean of error mismatch file message.
Larian has updated their support article for this issue, and it lists exactly the same file as an example:

Quote
Note: There are two known issues with the launcher check in the original patch 7 release, which can improperly trigger this warning:
- having the localisation set to a language other than English (this was tested before release using a test server, but there was an issue with the release process)
- some files left behind by the crash reported are not being ignored, and flagged as changed data, such as a dxdiag.xml file in the bin folder
These will be corrected in a hotfix.

Pretty daft way to check for installation integrity, if you ask me.
Posted By: TheHero Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 24/02/22 10:52 PM
Originally Posted by RutgerF
Originally Posted by TheHero
So to speak, never ever rename files and let them stay in that folder. REmove them from Game folders totally so the check of the launcher stays clean of error mismatch file message.
Larian has updated their support article for this issue, and it lists exactly the same file as an example:

Quote
... such as a dxdiag.xml file in the bin folder
These will be corrected in a hotfix.

Pretty daft way to check for installation integrity, if you ask me.

Thats why i renamed the file instead of deleting it, or removing it. Normally Files which are renamed arent detected.
Seems Software nowadays is a lot smarter then ever.
Posted By: RutgerF Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 24/02/22 11:06 PM
Renaming won't help, just look how they are doing it:

Quote
The launcher displaying a data mismatch error can appear due to unsupported mods, corrupt files, or unknown data. This can be from installed mod files, old data files from previous patches, or even your favorite image of Astarion you’ve decided to save in the games Data or bin folder.

I mean, Himmel Herrgott, why it's done this way? You create a checklist of all files the game contains, along with their sizes, and (if you are really paranoid) their checksums. That's it. If someone manages to save a picture of Astarion's ugly mug in that folder, it should be no problem, because the game doesn't know of that file, and will never touch it.

Porca madonna, what a bunch of amateurs. They are literally stepping on their own rakes.
Posted By: TheHero Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 24/02/22 11:56 PM
Originally Posted by RutgerF
Renaming won't help, just look how they are doing it:

Quote
... or unknown data...

I mean, Himmel Herrgott, why it's done this way? You create a checklist of all files the game contains, along with their sizes, and (if you are really paranoid) their checksums. That's it. If someone manages to save a picture of Astarion's ugly mug in that folder, it should be no problem, because the game doesn't know of that file, and will never touch it.

Porca madonna, what a bunch of amateurs. They are literally stepping on their own rakes.

Im fully aware that a renamed file COULD be seen as an unknown.
But why is it so important to let the launcher show that message, when a renamed file would do no harm?
Is that check a part of a future anti tampering method?
I mean comon, this is no game where people a competitive playing.
But if you like the picture of people stepping on thier rakes... well, laugh away fully on. Might be a sight to be seen wink
Posted By: jmos Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 25/02/22 07:28 PM
+1. Not having any issues playing, but get the error everytime I start playing. Hopefully it stays that way.

Don't know if it's related, but Vulcan seems to make my game really slow and laggy. DirectX seems to be fine though.
I'm also having the same issue, only seemed to happen when the hotfix was applied. I can play the game fine so far and other than the typical occasional bug nothing's gone terribly wrong. I tried deleting the old launcher folder and verifying the files but that hasn't done anything. Ah well, it's not a problem till it becomes a problem I guess.
Posted By: KRES_TR1 Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 26/02/22 11:29 AM
thanks this fixed everything for me, the health bar is back to normal, I can open the character sheet, and the context is back to normal
I think I may have found a (temporary? it's yet to break on me) fix! I opened the launcher 'steam_4.1.1.1473368_alteredFiles' file located in the appdata/local/larian etc. cache directory, and it pointed out the file DWrite.dll in the game's bin folder was apparently the altered file. I moved it elsewhere and the error message no longer shows up and an issue I was having with a CTD bug disappeared.

Dunno if this method might help others find what their specific problems are but thought I'd report my findings.
I was able to fix this issue by deleting both the new and old Larian Studios folders from my drive and then do a new installation. I believe one was "Larian Studios" and the other was "Larianstudios"
Originally Posted by maiaofmelkor
I think I may have found a (temporary? it's yet to break on me) fix! I opened the launcher 'steam_4.1.1.1473368_alteredFiles' file located in the appdata/local/larian etc. cache directory, and it pointed out the file DWrite.dll in the game's bin folder was apparently the altered file. I moved it elsewhere and the error message no longer shows up and an issue I was having with a CTD bug disappeared.

Dunno if this method might help others find what their specific problems are but thought I'd report my findings.

I'm going to try this next, thanks for letting everyone know. I had everything fixed, but after hotfix 20, it came back. Did everything the support page said, but no luck. Also that first paragraph on the support page (see below): what am I supposed to do? I tried deleting the folder, or the alteredfile.txt thingy, but it refuses to be deleted (it comes back, appearing outta nowhere, even after I delete it).

"In this case, there should be a log file listing any files in the install folder which are not expected, as well as files in the Mods folder. Copy %LocalAppData%\Larian Studios\Launcher\Cache into the location bar in Explorer and hit Enter, then look for a text file named for the platform (steam/galaxy), the game version number and ending with '_alteredFiles.txt'."

Okay, yes.... aaaaaand? What do you want me to do with this, @Larian ? Delete it? Rename it? I find this very unclear, since I'm not super PC literate. Anyone help?
Originally Posted by MarcoNeves
Originally Posted by maiaofmelkor
I think I may have found a (temporary? it's yet to break on me) fix! I opened the launcher 'steam_4.1.1.1473368_alteredFiles' file located in the appdata/local/larian etc. cache directory, and it pointed out the file DWrite.dll in the game's bin folder was apparently the altered file. I moved it elsewhere and the error message no longer shows up and an issue I was having with a CTD bug disappeared.

Dunno if this method might help others find what their specific problems are but thought I'd report my findings.

I'm going to try this next, thanks for letting everyone know. I had everything fixed, but after hotfix 20, it came back. Did everything the support page said, but no luck. Also that first paragraph on the support page (see below): what am I supposed to do? I tried deleting the folder, or the alteredfile.txt thingy, but it refuses to be deleted (it comes back, appearing outta nowhere, even after I delete it).

"In this case, there should be a log file listing any files in the install folder which are not expected, as well as files in the Mods folder. Copy %LocalAppData%\Larian Studios\Launcher\Cache into the location bar in Explorer and hit Enter, then look for a text file named for the platform (steam/galaxy), the game version number and ending with '_alteredFiles.txt'."

Okay, yes.... aaaaaand? What do you want me to do with this, @Larian ? Delete it? Rename it? I find this very unclear, since I'm not super PC literate. Anyone help?

Ah! Just open that file in notepad and it should tell you which file is causing the problem. The alteredfiles.txt file isn't the issue itself, it's like a log basically. When I found out what file had been altered thanks to the error log, I just moved it to another folder in my computer so I could just move it back if it made the problem worse/didn't do anything etc.
Originally Posted by maiaofmelkor
Originally Posted by MarcoNeves
Originally Posted by maiaofmelkor
I think I may have found a (temporary? it's yet to break on me) fix! I opened the launcher 'steam_4.1.1.1473368_alteredFiles' file located in the appdata/local/larian etc. cache directory, and it pointed out the file DWrite.dll in the game's bin folder was apparently the altered file. I moved it elsewhere and the error message no longer shows up and an issue I was having with a CTD bug disappeared.

Dunno if this method might help others find what their specific problems are but thought I'd report my findings.

I'm going to try this next, thanks for letting everyone know. I had everything fixed, but after hotfix 20, it came back. Did everything the support page said, but no luck. Also that first paragraph on the support page (see below): what am I supposed to do? I tried deleting the folder, or the alteredfile.txt thingy, but it refuses to be deleted (it comes back, appearing outta nowhere, even after I delete it).

"In this case, there should be a log file listing any files in the install folder which are not expected, as well as files in the Mods folder. Copy %LocalAppData%\Larian Studios\Launcher\Cache into the location bar in Explorer and hit Enter, then look for a text file named for the platform (steam/galaxy), the game version number and ending with '_alteredFiles.txt'."

Okay, yes.... aaaaaand? What do you want me to do with this, @Larian ? Delete it? Rename it? I find this very unclear, since I'm not super PC literate. Anyone help?

Ah! Just open that file in notepad and it should tell you which file is causing the problem. The alteredfiles.txt file isn't the issue itself, it's like a log basically. When I found out what file had been altered thanks to the error log, I just moved it to another folder in my computer so I could just move it back if it made the problem worse/didn't do anything etc.

OMG, thank you so much for explaining this to me. I hate being PC illiterate.... I expect bugs and issues in Early Access video game IN-GAME, but not outside the game and having to deal with data folders, etc. That said, I've learned so much, maybe I am no longer as illiterate as I thought. lol
Originally Posted by MarcoNeves
Originally Posted by maiaofmelkor
Originally Posted by MarcoNeves
Originally Posted by maiaofmelkor
I think I may have found a (temporary? it's yet to break on me) fix! I opened the launcher 'steam_4.1.1.1473368_alteredFiles' file located in the appdata/local/larian etc. cache directory, and it pointed out the file DWrite.dll in the game's bin folder was apparently the altered file. I moved it elsewhere and the error message no longer shows up and an issue I was having with a CTD bug disappeared.

Dunno if this method might help others find what their specific problems are but thought I'd report my findings.

I'm going to try this next, thanks for letting everyone know. I had everything fixed, but after hotfix 20, it came back. Did everything the support page said, but no luck. Also that first paragraph on the support page (see below): what am I supposed to do? I tried deleting the folder, or the alteredfile.txt thingy, but it refuses to be deleted (it comes back, appearing outta nowhere, even after I delete it).

"In this case, there should be a log file listing any files in the install folder which are not expected, as well as files in the Mods folder. Copy %LocalAppData%\Larian Studios\Launcher\Cache into the location bar in Explorer and hit Enter, then look for a text file named for the platform (steam/galaxy), the game version number and ending with '_alteredFiles.txt'."

Okay, yes.... aaaaaand? What do you want me to do with this, @Larian ? Delete it? Rename it? I find this very unclear, since I'm not super PC literate. Anyone help?

Ah! Just open that file in notepad and it should tell you which file is causing the problem. The alteredfiles.txt file isn't the issue itself, it's like a log basically. When I found out what file had been altered thanks to the error log, I just moved it to another folder in my computer so I could just move it back if it made the problem worse/didn't do anything etc.

OMG, thank you so much for explaining this to me. I hate being PC illiterate.... I expect bugs and issues in Early Access video game IN-GAME, but not outside the game and having to deal with data folders, etc. That said, I've learned so much, maybe I am no longer as illiterate as I thought. lol

I’m so lost. Ok, so I opened the alteredFiles.txt on notepad and it shows a list of 18 (!!) altered files all of which look like this:

!Downloads\setup_baldurs_gate_3_4.1.84.2021_(64bit)_(41970)-1(or another number).bin or exe

What do I do? Find and go to the !Downloads folder, and move all 18 files literally anywhere else?
Posted By: Juamanix Re: THE LAUNCHER HAS A DATA MISMATCH ERROR - 26/04/22 08:36 AM
I'm reading these comments and don't believe some of you didn't have broken mods in the game. Because such failures occur most often either due to total bugs in the update, or due to installed mods from God knows where. A cloud save failure is also possible, but does it look like this? The option to delete folders is interesting, you fix the save path. But in that case, I'm still interested in cases where it doesn't solve the problem. And this is clearly not a technical error of the hard drive. Lots of questions...
I seriosuly give up. Every damned time I attempt to play this game It's another stupid error. I have tried all suggestion above and the ones from Larian's help page. This is a goddamned joke and I wish I could just get my money back.
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