I got to the end of a Crypt and kept selecting characters to open the chest, but the character select list just stayed there and the chest did not open, because:
SCRIPT ERROR: generate_random_gear: Division By Zero in operator '%'.
At: res://src/core/world_gen.gd:619.
SCRIPT ERROR: make_chest_loot: Invalid get index 'code' (on base: 'Nil').
At: res://src/core/world_gen.gd:560.
SCRIPT ERROR: lockpick_attempt: Invalid get index 'lock' (on base: 'Nil').
At: res://gui_modules/Universal/Scripts/InteractiveMessageModuleAnimated.gd:238.
I was able to select to leave the chest alone, and that worked normally. Version 7.
Edit: And version 8.