Put the summary of the bug you're having here

No fall damage

What I expected to happen was to take fall damage but instead none, I fall form a 20 block high elevation and landed at the edge of the block and took no fall damage. Its like clipping the edge of a slime block and take damage instead otherwise.

Steps to Reproduce:
1. Jump from a high elevation necessary enough to take fall damage
2. As soon as you land, land at the edge of the block
3. No Fall Damage