Gravilty blocks don't 'land' when falling on to posts/walls

Weirdness:

• When gravel falls on top of a fence post it seems to get stuck in a falling state.

• If multiple gravel blocks fall on to the same post the entities jump up and down slightly on the post before settling!

• The player can walk through the block when it appears to have landed.

• The block is half a block lower than the grid

• Block doesn't despawn

• Relogging doesn't affect the state

• If you break the post, all the fallen blocks pop off on to the ground as items

To recreate:

Place a fence post, drop some gravel on top of it 😉