Here's the gist link for the Proton Log file... gist:27a13fccbedd60f8fb8ee16390d305f8
Hello @srsimon7, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/150#issuecomment-1003200358.
Compatibility Report
System Information
srsimon7/gist:ff0674e9c173b0fcf4c77378ed17f180
I confirm:
Symptoms This game has been working flawlessly since June, 2020. After the last Steam update it stopped launching. Pressing the Play button will attempt to launch the game then it stops and the Play button comes back on.
In looking through the Proton Log File, this came up as a potential problem... The entry point method could not be loaded due to Could not load file or assembly 'PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies.
Any help you can provide is much appreciated.
Thanks, S
Reproduction