So there appears to be two bugs that combined will softlock your game in Act 1 if they aren't fixed.
Bug 1: When you ask Shadowheart to leave your party to return to camp, sometimes her artifact will be transferred to your MC's inventory and then bind there so you can't give it back to Shadowheart.
Bug 2 (probably dependent on Bug 1): When you get to the goblin camp in Act 1, there is a cutscene that triggers. Normally, Shadowheart uses her artifact in this cutscene, but instead it will have an alternate ending (that I believe is meant to happen if you try to go the camp while Shadowheart is dead?), and your party blacks out, and the game forces you back to camp. If you try to return to the goblin camp, the exact same cutscene will trigger again, but then retrigger when the cutscene ends, over and over, getting you stuck in a loop of cutscenes until you quit the game.
The fix to this is to get the artefact back into Shadowhand's inventory. Then, when you enter the camp, the cutscene will resolve properly and you can continue with the game.
Unfortunately, it takes a bit of light hacking to get the artefact back to Shadowhand (hopefully Larian will fix this in the future). I do not know of a way to fix this if you encounter this problem on PS5 other than just never dismissing Shadowhand from your party.
Here is the fix that I've seen posted in several threads over on Reddit. I followed these steps and it fixed my game.
Step 1: install BG3SE-Updater-wConsole-v2.zip from
https://github.com/Norbyte/bg3se/releases by extracting the files into your game's bin folder
Step 2: fire up the game (use Larian's launcher, NOT other launchers). A LUA console should open up in another tab at the same time.
Step 3: Open the affected save file. Have Shadowheart in your party. Select Shadowheart so you are in control of her.
Step 4: Tab over to the LUA console. Enter these two prompts, in order:
Osi.PROC_GLO_InfernalBox_MoveBoxToCharacter(GetHostCharacter())
Osi.PROC_GLO_InfernalBox_SetPlayerOwner(GetHostCharacter())
The artifact should appear in Shadowheart's inventory again. When you proceed to the goblin camp, the correct cut scene should now trigger and you can continue with the game.
