This has been a persistent problem now for a few days. Constant crashing and random exiting of the game. It happens in combat, during missions (primarily main story missions), while in combat, even during character creation and graveyard tutorial. I have tried changing DirectX versions with no solution, altering graphic settings and turning down the graphics, disabling settings. Nothing is working. I did read Nvidia driver updates can cause issues and there’s been a couple updates lately.
If this started happening after an update to the graphic drivers, you could always try to roll back the drivers to an earlier version.
Mine has been fine since the 9/28/20 update. Before that was crash city. We did some MBs today, and two people crashed every single time we left. They eventually left the group.