I have ran into this weird little bug on ekos and OnStepX (10.19.k) i am not sure it's an OnStepX problem or a problem with how the INDI driver work. The problem is as following:
1. Action set to Sync in the Alignment tab.
2. After a goto and plate solve, there is an amount of pointing error. (Lets say it's RA:250 " DEC: 300"). The INDI perform a sync with the scope and it says the sync is completed successfully.
3. Now if the mount is tracking and you continue to perform a platesolve without any goto/slew then you'd expect the new platesolve error to be near Zero (since the scope pointing was synced with the last platsolve) But no, after the solve, the error still showns exactly as before. (Still RA:250 " DEC: 300"). This will continue no matter how many time you do the platesolve/sync. The only way to bring the error to zero is by changing the action to "Plate solve and slew". The mount will platesolve, sync the error, then goto the new position, after the second sync, the goto error now is corrected.
Is this how the sync should work on OnstepX or is it a bug? I think because of this, the mount unable to build a model correctly with KStars?

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