Issue with Hatz and the push‑tree quest

When Hatz stands on the push‑able trees on the map, uses Rest or Sleep, then stands up and walks right before the tree falls, you will take fall damage and become unable to fly.

I rest on the tree trunk. When the trunk gets pushed over, I stand up. I spam the spacebar but cannot fly and take fall damage.

When the tree trunk is pushed over, a Hatz that was resting should be able to fly normally after standing up and fall along with the trunk without taking fall damage.