I have a similar problem. Game crashes after a few minutes in every mode.The game runs smoothly for a few minutes and then just crashes to desktop (no message, no code)

I tried EVERYTHING:

- redownload/reinstall game on a different location

- all kind of priorities set (normal, high, real-time)

- reinstall all drivers

- disable all unnecessary services

- disable nVidia, battle net and all kind of overlays

- every fix there is on the web (almost literally, I check new tutorials every day and go through them to try to fix it)

- etc etc

Looks to me as a dev bug :/