In the Astrotrac driver settings, go to Options (the area where u choose plate solving settings)
There is an option there to choose “differential solving”. I think it’s mainly for Paramounts where you don’t sync but use a differential offset so that the t-point model is not affected.
In any case, with that checked, it perfectly plate solves every time. However, the final centered image doesn’t show in the plate solved window and it still shows a huge error. But if u go to camera and take a shot, you will did that it’s centered on the object you wanted. You can also select capture and solve (and do nothing option) in the PS window in the end, and then you will see the object.