Thanks for reporting this to us, guys! Certainly difficult to play the game with the UI disappearing, so I'd really like to help.
For those who are able to, can you try running the game in DirectX 11, and see if this solves the issue? You can change this at:
And changing the line ("Device Type": "DX11",) to ("Device Type": "DX12",).
Does that seem to solve the issue? Let me know if so, as that'll be useful information to pass on to our devs for investigation.
In addition, if you can all be sure to verify your game files, and make sure your drivers, OS, and supporting files (such as DX, of course) are updated, as explained by our troubleshooting article
, that'd be great.