For some reason the high oven ducts will not move from the purifier slot. Earlier I had ones that were working but when I broke and replaced them they also would not work.

Oddly, the bug can be fixed by breaking and replacing the controller with the ducts still in the structure. Perhaps the ducts only realize they are part of the high oven when it is first constructed?

You mean to the purifier slot ? Caus only the output duct will move something from the controller.

I'll look into it

What I mean is the slot it sends to will not toggle.

Oh yes, I see what problem it is. Have you tried logging off and back in when that happens ? (I don't know what's causing it)