Decaying Tree Quest Falling into map

the tree remains lying down, but the option to push it is still available.

If you push the tree while it's already lying down it will fall under the water/map. Whenever you try to walk on the tree with it either under the map or already lying down with the "push" option your dinosaur starts glitching and staying in one spot.

The tree is supposed to fall over from the standing position to a laying position and walking over it should be smooth and possible.