Hello everyone,
I have an issue with synchronization on CEM120EC - it is not working to be frank. And logs shows that my mount does not support sync
[2020-04-06T20:45:58.843 Central European Daylight Time INFO ][ org.kde.kstars.ekos] - "iOptronV3 is online."
[2020-04-06T20:45:58.877 Central European Daylight Time INFO ][ org.kde.kstars.ekos.mount] - "Warning: Overriding RC14 configuration."
[2020-04-06T20:45:58.901 Central European Daylight Time INFO ][ org.kde.kstars.ekos.align] - "Mount does not support syncing."
does anyone have similar issue?
Also, my mount reports in KStars the pointing in RA with different errors (sometime it does not move the crosshair in RA at all)- while it points pretty much good in requested area (with few arcmin error)

And moreover - have anyone stumbled upon a problem with tracking in iOptron mounts - like the one in the link:

I am enforced to use depreciated firware which is free from this tracking periodical error - but this is waaaaay old firmware from 2018 which may be responsible for lack of sync and pointing error.
Worse - iOptron was not fond of help at all.
I appreciate any help.

I'm not really sure why you get this message. CEM120 definitely supports syncing. Can you check INDI Control Panel --> On Set property has Sync button in there? If yes, then you can ignore this error.