Thanks to gofman's help, I've found that the following two solutions work (pick one): 1. Run the game from a different drive 2. Launch with `PROTON_SET_GAME_DRIVE=1` I suspect the problem is the game doesn't like the pat...
gofman asked me on Discord for a log with just `PROTON_LOG=1` (instead of `+relay`) after deleting the prefix. So I reinstalled the game (and verified that this deleted the prefix) and ran it with vanilla 9.0-2 and no pr...