answered LM Beau Hollis on "DXGI-ERROR-DEVICE-HUNG" says:

[robpol471]

"We have a couple known issues we are looking into:

1) ATC sometimes can cause these when text updates.
2) Camera switch to VC on 5700 FX and Radeon VII. AMD is looking into this.
3) Crash on scenario startup screen with older Nvidia drivers. Nvidia fixed this in the latest drivers.
4) Device Hung when VRAM budget it overrun. You can see VRAM usage on the infogen to the left of the FPS counter.
 

We are working on better VRAM usage, and recovery from over budget. "

Beau Hollis
Prepar3D Software Architect