Piston in Piston Door Doesn't Update

I've assembled a 3x3 sticky piston door (Not spiral, simply retracting) and when ever I open it, the piston at the 9 o'clock position doesn't retract unless I update the block attached to it (such as breaking the block). I've got it in both my creative and survival worlds and the test door in Creative worked fine until I built it in survival, now both have the same problem.