When I start guiding and sky is cloudy I get message "Failed to select an Auto star". The guiding status remains locked in Prep and the STOP button is greyed out. I cannot find a way of re-starting guiding. The only action is to close the connection and re-start the profile.
After starting the profile a test image shows star trailing. Performing a GOTO to previous target and taking a second image shows star trailing has stopped. Guessing by maybe the mount wasn't re-set to tracking rate after guiding lockup was cleared?