Just my personal opinion, try imaging without plate solving. IMHO you don't need it, if your in an observatory with a mount precisley aligned to the SCT. I have never used it or seen a real need for it. I have a simple manual rotator on my T-Adaptor, and find that is all I ever need, well maybe a little touch on the control buttons. Using SGP Frame and Focus, and the target rectile, and loading (in SGP) a previous session image for reference, I can quickly (in seconds) nudge (if needed) the target orientation to match my last session on that target. I use DSS and it has no problem with my subs.
I think there is a developing over dependency on more and more software apps to do things for us that we can do ourselves. If you learn to match them manually, you will have a much better understanding of your mount controls, and the target orientation in the sky. This is how it was done before Plate Solving.