19 seconds video demonstrating the bug: http://youtu.be/l9ZSZAAnzgc (All wire types are used)
Forge 10.13.3.1395, BP 0.2.928, QmunityLib 0.1.107.
Only BP is installed.

No longer an issue with newer versions see Work in progress / Project for further details.

Interesting... Hadn't seen that one before... I'll try to fix it today :)

Well, pistons are working different.

I don't know this fully but I'm thinking doors close if an adjacent block updates. But I'm not sure :)

I tried forcing an update but it didn't work.
If you watched the video you could see that pistons do work with BP wires and they are even trickier than doors when it comes to block updates.