Here is a brief Q/A for how you can fix bugs you are having with the mod.

Q: *The items are completely invisible! Help!*

A: Check if you are using any other mods that modify the sprites for items. If you are and the mod is above the Vectorized Items mod on the modlist, disable it.

Q: *I have no other visual mods and items are still invisible/sprites!*

A: Close the game and right click Rebirth in your Steam library. Select "Properties > Local Files > Validate integrity of files". When this process is finished, boot-up the game and the mod should be fully downloaded.