2 of my PCs have the issue where it will occasionally crash after I zone/load. Not sure what It is but for sure there is an issue there. My other PC will almost always crash after a load but ONLY If I adjusted my UI in that session. On that PC If I need to make UI adjustments I log out and back In after there made. Its always been like this for me.

As far as heat goes, If I don't crank my fans I will overheat. before I log In I crank my GPU fans to 50% and then when I log out I set them back to automatic, Its a PITA but my temps are great when I do this.
Its also a good Idea to clean out any dust you get In your PC. Make sure all your case intake holes are clean, lots of cases these days have hard to clean spots for some reason.