Actually, when I increased the "refresh" setting to 11 seconds, plate solving failed with msg saying timeout: 10s. So in my video, the failure in less than 1 second is misleading. Plate solving was forced to stop because the refresh was set to 2s in my video.
I have the same problem. The first 3 images are resolved successfully, and all "refresh" images failed within a second. Please see attached video.
One thing I notice is that the RA value from the mount is largely different than the RA value from plate solving (of the 3rd image). I am wondering which one is sent to the plate solver for refreshed images, and if that is the cause of the problem.