When further than 10 blocks away from an enchant table, z-fighting will occur sometimes causing the cover to disappear or half of it to go missing. It distracts from gameplay with the book bugging out in the corner of my vision. I never noticed it before but this is on a locally hosted LAN/friends list world (If that has anything to do with this)

HOW TO REPRODUCE:

Just place an enchant table and wander some distance away and then look at the book in the table with a spyglass or by lowering FoV. You will see patchy z-fighting as it rotates