1. Yeah, you’re not supposed to be able to go back to the island on the same day. Since it resets at night. So avoid going back on the same day otherwise it will cause you to get stuck
2. The cultists heights reset after battle to a minimum. Hence why the number jumps back up. Since they can’t be in the negatives (although they look the same, it’s not just one, so they reset each night)
3. hmm. That’s weird. Do you normally use the keyboard in battle or the mouse?