Daviswh This image may not be solved.
Bill,
To resolve this, I would recommend not doing anything with polar alignment yet. Just move the OTA to somewhere outside the 30 degrees declination of the pole first (since ASIAIR is unable to perform normal plate solve near the pole).
Then try to do plate solve by itself. This way, you not only can see why it is not plate solving, but if plate solve succeeds, ASIAIR will also set the correct focal length for your OTA (probably around 250mm +/- 5mm for your telescope).
Experiment around with the exposure value (in your case, exposure time and ISO) to find the sweet spot, and discover the range of exposure values where plate solve succeeds.
Once you have dialed in the correct focus, the correct exposure value, only then move to the polar region to do a polar alignment.
Make sure there are no structures (tree branches, roof eves, chimneys, etc) that stick into the FOV of the plate. Any shadow will fool plate solving since it depends on the asterisms of stars to determine the camera angle and the center of the plate.
You may have to compensation for the exposure value if you are going from a star-rich Milky Way to the dimmer region of the pole. But you usually do not need to tweak the exposure value by more than a factor of two to compensate.
It is crucial to get a tack sharp focus. Your RedCat comes with a Bahtinov mask -- use that. Not only does a good focus give you the best signal-to-noise ratio so that dim stars are also available for plate solving, big fat stars (with HFD/FWHM of over 4 or 5) may not even be recognized as stars.
You usually need between two dozen to two hundred good stars for the plate to solve uniquely. Just a half dozen bright stars is not good enough.
On the other hand, over saturated stars will also be rejected. Thus, there is a region of exposure values that works best for plate solving. Too many bloated, saturated stars can confuse the plate solver too, since it then has to rely on the asterisms for dimmer stars that may not be in its database.
Chen