Fantastic game, I did get two bugs.
1. The Feeder Fairy who needs you to find her magic stone (the room after you recruit Jill) where after she moves to allow you to turn the switch if you speak to her again it freezes the game (her text box comes up but nothing is said and you can't exit out of it).
2. The Sorbet Quest line could get bugged if you craft the item before finding the woman in Brinestone to initiate it, where it won't say you completed it even if you deliver it to Karia (but it doesn't softlock the game).
These issues are on version 7.2 (browser specifically) so if they already have fixed then disregard this.