I have an Atlas Pro AZ/EQ and it has worked flawlessly with EqMod, Stellarium Scope and Stellarium that is until I "upgraded" to version 20 of Stellarium. With v 20 I tried ditching Stellarium Scope and using the built in Ascom native driver but found it so frustrating to connect and non-intuitive to use that I applied the maxim "If ain't broke don't fix it" and moved back to version 19.2 and returned to using Stellarium Scope. After doing so all is well again. What I am surprised about is that there is not more written about this problem and the fix for it. I see there is now a v 20.3 but reading the fix list I don't see this problem even mentioned so don't want to take the chance of wasting another night trying to get it to work with my mount.
Scott