I downgraded to version 2.3.3 with an old Android phone I have here and practically all the problems I had disappeared (Meridian Flip, Inverse Meridian, Plate Solve, PA, Auto Focus).
I'm going to keep this up for a long time and, although the phone always updates to version 2.4.1 automatically, I delete the app and install version 2.3.3 again.
I believe that mistakes happen in the development process and that the ZWO team can correct them and bring back the magic of this excellent product.