i had similar problem, is it this issue??
"gpu crash dump triggered"
It's a common problem on UE4/5 games sometimes, try disable any game overlay, like discord .
There's also something you could had on "regedit", thats what i did too following that guide on redit
https://www.reddit.com/r/marvelrivals/comments/1hg5ndf/gpu_dump_crash_fix_not_for_all/?rdt=65087

Mods will do this.

Could be a direct X issue:
https://robotentertainment.zendesk.com/hc/en-us/articles/30567641106189-Fixing-UE4-Fatal-Error-Crash

Could be gfx card driver issue.