While in the nether, enchanted bows will show up invisible on armor stands and skeletons. I am unable to take any pictures because of how you cant see it. Its transparent, and it blocks out parts of the environment if you look at the bow in its hand. It is specifically enchanted bows. 

Steps to Reproduce:

1. Go to the Nether
2. Place an armor stand
3. Obtain and enchant a bow
4. Place the bow on the armor stand

Observed Results:
The bow appears invisible.

Expected Results:
The bow should be visible on the armor stand.

Keywords for search: armour render disappear invis