Thanks for playing our game! Sad to hear that you got crashes. That is annoying. Yeah it is always a risk to take on 3d and such Textures, Lightning and all the stuff. Normally it would require much more testing to get the corner cases. Also one guy had extreme brightness for what ever reason.
The time pressure of jams helps to get stuff done I guess.
The hint with a progress save is very good. We prob. will keep that in mind for future.