New item screen, item icon disappears

[catskull]

I think this happens if the screen is still moving when an item is picked up. The item icon will just disappear. If I wait until the screen is not moving, the icon stays. Here's a picture:

[andwn]

This is related to sprite sorting. I am waiting on upstream functionality because I want to work on other parts of the game.

[catskull]

Duplicate of #6, closing for now.