Observer/Piston Crash

I was attempting to make a refresh-able screen using lamps and pistons to force block updates through movement. In doing so I encountered this crash.

Steps to Reproduce:
1. Build redstone contraption like in the attached images

Specifics:
I was using lamps, but as you can see in one of the screenshots where I used quartz, any block will cause this to crash.

2. Activate using the lever