Why doesn't Logic Pro X remember controller assignments when I switch patches?

Question

I'm trying to work with setting up External Controller Assignments with my Akai MPK25. I'd like to have Knob 1 map to the 1st Automatic Smart Control knob I can see (like Timbre or Cutoff or whichever is leftmost) OR have Knob 1 always map to the same paramater (Timbre, Cutoff, etc).
I'm able to successfully set them up on a single patch but the moment I switch to a different patch, Logic completely forgets the assignments. And if then I switch back to the original patch, the assignments are also ost. If I toggle "Compare" in the Automatic Smart Controls window back and forth, Logic loses the assignments. But oddly, it remembers one or two (out of eight potential paramater assignments).
How do I get Logic to remember these assignments?
Here's a screenshot of my window: https://www.dropbox.com/s/uqzqen6etkh0uxf/Screen%20Shot%202013-11-24%20at%205.02 .43%20PM.png
Thanks so much in advance.

Answer 1

No, no need to chase any pur.
You can clickhold that No Output slot and assign an output.
...but for that to work you need to have chosen your audio hardware in the preferences, of course. And while you're at it, make sure you also have all Advanced Tools enabled.