I can't reproduce this. Saved a panel layout based on "Ubuntu MATE", switch to Cupertino and get Plank (correct), then switch to my saved layout and Plank is gone (also correct).
Plank is never saved in the layouts.
I can't reproduce this. Saved a panel layout based on "Ubuntu MATE", switch to Cupertino and get Plank (correct), then switch to my saved layout and Plank is gone (also correct).
Plank is never saved in the layouts.