The top 4 inventory slots (starting from the right) are not accesible in the inventory. A little backstory: I apparently got the whole "item numbers in inventory going over item text display" bug, and on top of that, I no longer can move/take/add/or remove anything from those slots when in my inventory. If I am in my furnace, crafting table, etc. I can access those slots. I tried re-logging, and after a while the bug seemed to have dissapeared.