I saw an article yesterday about a specific setting that helps many people avoid issues on PC.
That's what Unreal just tried to tell me "it seems your game has crashed multiple times recently. Try setting your settings back to default" Which I don't want to do as the game is hard to play with default settings and I had to work at it to get it running smooth.
I'll have to look into what might be causing it. I was just playing for hours though with no problems. (ended up taking the day off)