Game crashes sometimes on win7 with d3d11.dll access violation

Hi, One of my beta testers encountered this crash about half the time he tries to launch the game, it crashes partway into loading (but makes it past the made with unity splash screen). He says he's running Windows 7 home basic. None of the other ~15 testers reported anything like it.

This version was made with 2017.2.5f1, but it also occured on a version I gave him that was made with 2017.1.f1

I'm using Newtonsoft.Json, Facepunch.Steamworks, and steam_api64 plugins.

This is the crash log generated by windows:


Favor Chess RM2017 [version: Unity 2017.2.5f1 (588dc79c95ed)]

d3d11.dll caused an Access Violation (0xc0000005)
in module d3d11.dll at 001b:70e665ba.

Error occurred at 2019-03-10_202606.
C:\Users\User\Downloads\FCWin_Beta3cTest\FCWin_Beta3cTest\FavorChess.exe, run by User.
52% memory in use.
1979 MB physical memory [934 MB free].
3958 MB paging file [2360 MB free].
2048 MB user address space [1670 MB free].
Read from location 00000031 caused an access violation.

Context:
EDI: 0x00000000 ESI: 0x05137174 EAX: 0x051371ff
EBX: 0x03603d2c ECX: 0x0733e758 EDX: 0x00000000
EIP: 0x70e665ba EBP: 0x0733e6ec SegCs: 0x0000001b
EFlags: 0x00010282 ESP: 0x0733e6ac SegSs: 0x00000023

 

It's a known issue reported some time ago. Please see the thread here:
https://forum.unity.com/threads/cra...-in-module-d3d11-dll-at-0033-ef656f40.431030/