After the latest patch I now sometimes get a dead screen after long 30+ min of playing. I see like 1 frame blinking forever, sound is working, and if I ALT+TAB out and back, I get a black screen. My games end there as I can't do anything.
Frozen screen
@melanol
that might help
https://forum.faforever.com/topic/3104/game-stuck-and-crash