Hello @awsdert, 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/3309#issuecomment-784180049.
Thx
proton experimentalx1 2021-02
Compatibility Report
System Information
I confirm:
Proton Log
This came out pretty big as I had left the game on overnight while steam downloaded a fresh copy of FFXV (which is now reporting it couldn't verify my copy, these online requirements for games that should be offline are really annoying), the main reason was that I was doing a scan for a particular value at 3am, decided f**k it, just turn the monitor off and go to sleep.
https://drive.google.com/file/d/1ZWW2ARIaXC70mHpjOA7cIdnvF65SYrar/view?usp=sharing
Symptoms
Locked up on me during gameplay, true I had been editing values with PINCE but it wasn't when I was doing that that the lockup occurred, it was while I was placing down castle blocks in Furrowfield. Lot of effort went to waste due to the unexpected lockup.
Reproduction
Just build I guess, as I said I was placing down blocks when it happened but I had placed down a lot of blocks prior to that and nothing unexpected happened until that random lockup