from testing, a more specific explanation of this bug:
Attempting to load ANY challenge that has been created in the well will break the game.
Even if its nearby. If the well has even been loaded when the balloon was made, the game breaks.
(ŮÔ0ØŚƁŮþ3ČŕõÛ0IèU, which took me way too long to verify, is gone forever.)