Several players on the Steam bug discussion page (EDIT: Referring to comments on this page, but I suppose these could be different causes for the same exception after looking at them again) have noted an Access Violation exception that crashes the game at seemingly-random times.
I managed to find a Proto planet where this can be reproduced, and on the third attempt the game warped my character back to the ship instead of crashing. This produced an error log referencing an FU dungeon:
Several players on the Steam bug discussion page (EDIT: Referring to comments on this page, but I suppose these could be different causes for the same exception after looking at them again) have noted an Access Violation exception that crashes the game at seemingly-random times.
I managed to find a Proto planet where this can be reproduced, and on the third attempt the game warped my character back to the ship instead of crashing. This produced an error log referencing an FU dungeon:
And the regular log, if it helps:
I've backed up my universe, so I can also provide that if you'd like to try and recreate the crash.