I did a free download from the web from 8.1 to Win 10.
I tried the work around and switched my audio to 64 bit. Still did not fix the problem. It appears the video settings change during play on their own. If I set it to High, they will change to Ultra. Wondering if Nvidia Geforce Experience driver is the problem?

I wasn't running mods. Its not crashing, The frame rates crash. The good news is I uninstalled both the Dev and regular versions, uninstalled the video drivers, reinstalled everything and it has stopped.

PS. Love the new server, but it would be better tested in Regular version as no one runs Dev branch servers but you guys.

I open the SQM in notepad++ and line 7969 is repeating the identity, attached is a screen shot. However, it is doing the same thing on new SQM files when I try to save a mission after creating a new one.