Hey man, thanks for playing. We had a wild time with the game. I encountered the crash during packaging also, was super annoying and I wasn't sure what's causing it. Seems to be related to some shading caching issue. Found a post by someone from Epic Games for 5.5.0 for a workaround but it doesn't seem to be stable. Was hoping it's related to my (very specific) hardware. :/
The level I was too lazy/too overburdened to finish haha