Robot Glitches through Block!

Instructions to reproduce:

1. Place Structure Pipe
2. Place Gate, Lever and Docking Station on Structure Pipe
3. Set Instruction on gate to On Redstone Signal goto Station.
4. Activate Lever
5. Place Robot (of any type - mine was a planter)
6. Break Structure Pipe.

Pastebin Address:
http://pastebin.com/c17Z7wPG