I found another bug, whenever you enter in the tavern in Forest Town or sleep in the tavern, after Lexi is recruited into the group, she will reappear right behind the bar again even after Lexi has already been recruited
I do remember when replaying the game again and if Pollynym is saved, she did actually enjoy being inside her belly, this is just a thought but what if Nessie swallowed the party members but it's just for fun similar to what Martha does at the Seal of Wind