Agricraft appears to cause buildcraft's docking station to render incorrectly when both mods are installed.
Versions:
MC - 1.8.9
Forge 1.8.9-11.15.1.1764
Buildcraft 7.2.5
Agricraft 2.0.0a3
Steps to Reproduce:
Install Forge
Install both BC and Agricraft
Start Minecraft
Also in BC's repo

You have a broken issue link. Also rendering changed so much in 1.8.9 that most mods have had to do some questionable things, so mod interactions like this are hard to address.

My apologies...updating the link now. And yeah, I just wanted to make sure that both mod authors knew about it.