Chests will not open when Item is in hand / Shift is sticking

I went to open my chest with an item in hand and it would not open. Nothing was over the chest to keep it from opening. I tried this with Ender and Trapped chests as well and the same thing occurred.

What I expected to happen was...:
My Chest to open with item in hand

What actually happened was...:
Chest did not open.

Steps to Reproduce:
1. Walked into my stable.
2. Item in hand
3. Click to open chest