Thanks for checking the log files.
I have had the mount for over two years and it has worked all that time using direct connections to my Windows10 laptop running APT.
I replaced the laptop early this year (April) with a Raspberry Pi4 running Kstars/Ekos and that worked since then without issues.
I have not had a chance (due to clouds) to get out since this issue but I will certainly check the cable and try again. Perhaps it was a cable snag as the mount rotated? My indoor testing works fine as far as I can tell.