XP seems to be bugged with vore moves. If they enemy dies to the turn damage, it doesn't reward xp at the end of the fight. Also some of the moves have targeting issues at low hp (If the move does more than their health, it says that the target is not in their stomach but it still does damage). This is likely the cause for the slime issues in 0.3.2 (Slime dies to digestion damage at end of turn and the player is left with less xp)