Affects Version/s: Minecraft 14w25a
Fix Version/s: None
Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here
A regular barrier block symbol would appear.
What actually happened was...:
Describe what happened here
It was a purple and black checkerboard
Steps to Reproduce:
1. Place a barrier block, or hold one.