OK it seems to be related to the new feature - Imagetrain. If I modify image train so that 120mm is both secondary camera and guide, and select mount for 183MC then at least it tries. Ends up timing out with the following:

2023-01-17T17:50:56 GUIDE DEC: Scope cannot reach the start point after 21 iterations.
Possible mount or backlash problems...
2023-01-17T17:49:54 DEC drifting reverse...
2023-01-17T17:49:31 DEC drifting forward...
2023-01-17T17:49:18 DEC backlash...
2023-01-17T17:49:08 RA drifting reverse...
2023-01-17T17:48:38 RA drifting forward...
2023-01-17T17:48:38 Calibration started.
2023-01-17T17:48:38 Auto star selected.
2023-01-17T17:48:22 Autoguiding aborted.
2023-01-17T17:47:47 RA drifting forward...
2023-01-17T17:47:47 Calibration started.
2023-01-17T17:47:47 Auto star selected.
2023-01-17T17:46:56 GUIDE_RA: Scope cannot reach the start point after 21 iterations. Possible mount or backlash problems...
2023-01-17T17:46:02 RA drifting reverse...
2023-01-17T17:45:35 RA drifting forward...
2023-01-17T17:45:35 Calibration started.
2023-01-17T17:45:35 Auto star selected.
2023-01-17T17:45:17 Autoguiding aborted.
2023-01-17T17:44:46 RA drifting forward...
2023-01-17T17:44:46 Calibration started.
2023-01-17T17:44:46 Auto star selected.
2023-01-17T17:43:42 Autoguiding aborted.
2023-01-17T17:43:19 RA drifting forward...
2023-01-17T17:43:19 Calibration started.
2023-01-17T17:43:19 Auto star selected.
2023-01-17T17:42:52 Autoguiding aborted.
2023-01-17T17:42:17 RA drifting forward...
2023-01-17T17:42:17 Calibration started.
2023-01-17T17:42:17 Auto star selected.
2023-01-17T17:29:44 Autoguiding aborted.
2023-01-17T17:22:53 RA drifting forward...
2023-01-17T17:22:53 Calibration started.
2023-01-17T17:22:53 Auto star selected.

How should I configure imaging train please ? I did read all the docs I could find.

Read More...