-2005270523,0 rendering\d3d11\d3d11context.cpp line 116
running win7 with latest version of flyinside, htc vive, FSX dvd version with latest patches.
The only change that may have happened was Avast antivirus did an update around that time.
Since then, I've removed the following folders and restored them from a two week old backup (from when things worked for sure):
C:\Users\<name>\AppData\Roaming\FlyInside
C:\Users\<name>\AppData\Roaming\Microsoft\FSX
D:\Microsoft Flight Simulator X
Prior to this removal and reinstall, I removed Avast.
No change. Same error.