Artist Mix bug with 12.1

I upgraded to 12.1 today from 11.3.1, and for some reason, I am unable to use the "Auto" button on my Artist Mix to toggle through the automation modes on a track UNLESS Pro Tools is playing back. If playback is stopped, pressing the button does nothing. This was not the case in 11. I'm on Windows 7 running the latest version of the Eucon software...firmware on the Artist Mix is also up to date. I assume this is just a bug...anybody else seeing it?