When you place a chest, that chest will dissapear. It also makes a dark shadow when you stack chests.

Put the summary of the bug you're having here

What I expected to happen was...: I should stack the chest
Describe what you thought should happen here

What actually happened was...: the chest had a dark shadow on it. And in creative the chest would dissapear.
Describe what happened here
The chest(s) disappear in creative and in survival the chest would have a dark shadow upon stacking.
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... Stack a chest or chests. Chests will also randomly dissapear.
3. ...