Yes, I am using the most recent Hub for X-Plane, the orange Icon.
Yesterday I did some more troubleshooting, by testing it on the MFD by switching to Display Backup (the red button on the audio panel). I am able to enter the encoder speed mode on this display but push to sync HDG is not working either.
I set the max speed in the encoder to 5 (it could have been at max already, but I wanted to make sure), since higher values are not accepted in X-Plane 12.
I also confirmed I am on the most recent firmware v 02.1 and hardware 2.0