Thank you Sir! That was indeed the problem. I have a QSI683 with an 8-filter wheel. I don't understand why this works on my RaspberryPi 2, but maybe I did something months ago that I don't remember.
I am heading to the Oregon Star Party in Central Oregon, USA for a week of dark sky imaging, and after using Ekos for Plate Solving/Alignment I just don't want to go back to my Windows based work flow. With Ekos, my mount (Celestron CGE Pro) can see and no longer has to guess where it is.