Animal’s collision boxes are too big behind and on the sides.

[SamuliSaarine]

How to produce: Create a creative world, spawn a wild wolfhound, follow it walking around until it will go to the edge of the block.

Excepted result: Animal falls when it’s feet go over the edge.

Achieved result: Animal doesn’t always fall even if it’s nearest part is 10 cm outside the edge

Solution: Make the collision box smaller.