If you shuffle Dungeon Entrances (ON), Boss Entrances (Age restricted OR Full) and Ganon's Tower Entrance, seed generation fails a good percent of the time for no logic. This failure does not seem to happen if Dungeon Entrances are set to (ON + Ganon) so this is specifically when not including Ganon's in dungeon shuffle, but with tower shuffled. Attached a preset that shows the failure but dungeon/boss mixed pools does not seem to be required for failure.
DOESNTWORK.json
If you shuffle Dungeon Entrances (ON), Boss Entrances (Age restricted OR Full) and Ganon's Tower Entrance, seed generation fails a good percent of the time for no logic. This failure does not seem to happen if Dungeon Entrances are set to (ON + Ganon) so this is specifically when not including Ganon's in dungeon shuffle, but with tower shuffled. Attached a preset that shows the failure but dungeon/boss mixed pools does not seem to be required for failure.
DOESNTWORK.json