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.
