Sinking Through the Map (Collision Issues)

[andrewgrider]

When inactive, I have noticed you sink through the map slowly. I have come back to the page many times to be glitched into the dirt, or completely fallen below the map. This also happens when walking into blocks, they stop you for about 200-300ms then let you walk through the block entirely

[ZombieBrine13092]

This happens to me as well. Leaving my build progress overnight makes me go through the floor, and coming back just to use the fly feature shown in a pull request.