Game crashing at 1440p

So overwriting my original post the problem is a crash, not a hang. If I leave it long enough instead of hitting Alt+F4 the game crashes. If I play at 2560x1440 it crashes after a few minutes. I can’t even complete one battle. Then if I play at 1920x1080 it works fine. I played for a couple of hours last night with no worries. The main thing I got out of the crash log was this: nvwgf2umx.dll caused an Access Violation (0xc0000005) in module nvwgf2umx.dll at 0033:fff8e201. nvwgf2umx.dll is in a subfolder of System32 so I didn’t think it was safe to mess with. Anyone have any idea what could be done about this?
Specs: Ryzen 5 3600
Nvidia 1080Ti
Windows 10
Windows, game and drivers are up to date at time of posting. Running the game at 2560x1440 max settings. I’ve reinstalled the game, removed and reinstalled GPU drivers with DDU.

Update: It’s crashing at 1080p now as well on one of the missions in the Pure storyline. I’ve clean installed the drivers again, it’s not making a difference.
Phoenix Point by Snapshot Games Inc [version: Unity 2018.4.15f1_13f5a1bf9ca1]

nvwgf2umx.dll caused an Access Violation (0xc0000005)
in module nvwgf2umx.dll at 0033:7825e201.

Error occurred at 2020-04-04_131732.
F:\Epic Games\PhoenixPoint\PhoenixPointWin64.exe, run by *****.

48% physical memory in use.
16315 MB physical memory [8404 MB free].
9595 MB process peak paging file [9119 MB used].
4514 MB process peak working set [4018 MB used].
System Commit Total/Limit/Peak: 15245MB/27195MB/15732MB
System Physical Total/Available: 16315MB/8404MB
System Process Count: 173
System Thread Count: 2203
System Handle Count: 69963
Disk space data for ‘C:\Users*****\AppData\Local\Temp\Snapshot Games Inc\Phoenix Point\Crashes\Crash_2020-04-04_031727559’: 35103338496 bytes free of 249550397440 total.

Write to location 0000000000000025 caused an access violation.

Full crash log here:
Most recent output log here: