Baldur’s Gate 3 Known Issues, Workarounds and Fixes

Collect a crash report when the safe checks do not help

For continuing startup crashes, Larian asks for diagnostic material including a DxDiag report and any game crash dumps. The report helps support investigate the particular fault; it is not a guaranteed repair by itself. [2]

Documented steps

1. Run DxDiag, wait for it to finish and use Save All Information to prepare the report for a private Larian support request. [2]

Cross-play lobby fails when mods differ

Larian requires everyone in a cross-play lobby to have exactly the same mods and mod versions. The verification window can be used to enable or disable the required mods when launching the game. [3]

Documented steps

1. Confirm that all players have cross-play enabled. For a connection failure with mods, try hosting or joining without mods to see whether the same issue occurs. [3]

Save or multiplayer requires a different mod version

The verification window compares installed and enabled mods against a save or multiplayer session. It can offer Download, Enable, Update or Downgrade depending on the mismatch. [4]

Documented steps

1. Use the offered Download or Enable option for a missing or disabled required mod. When the session uses a different version, use the indicated Update or Downgrade option. [4]

ASUS Sonic Studio Virtual Mixer startup crash

Larian identifies an ASUS Sonic Studio Virtual Mixer issue that can cause a startup crash. The cited guidance applies when that program is present; it does not justify disabling security software or making the same change on every PC. [2]

PC startup crash and game-file integrity

The same support guide includes checking local game files. Use the storefront’s repair tool for BG3, which differs between Steam and the GOG Galaxy client; do not replace this with deleting a save folder. [2]

Documented steps

1. For Steam, use Verify Integrity of Game Files in the game’s properties. For GOG Galaxy, select BG3, open the settings icon beside Play, then use Manage Installation > Verify / Repair. [2]

PC crashes on startup: try the supported renderer alternative

Larian’s PC startup guide recommends testing DirectX 11 and Vulkan in the launcher when startup crashes occur. This comparison can identify a renderer-specific problem without assuming that a save or all game files are damaged. [2]

Documented steps

1. Select the other supported renderer in the launcher and test whether BG3 starts. [2]