I'm having the same problem. I have a topic on this a week ago and was hoping to get a reply back from ZWO on a solution, but so far, nothing. I think it's a faulty upgrade and needs fixing. I have both the ASIAIR Pro and the Plus, which I just received today, and they both have this issue with the 8.48 FW upgrade. My mount is a Losmandy GM811G, but I don't think the mount is the issue.