KStars 3.4.3 Build: 2020-07-15T21:35:26Z ; Source : Nightly builds

Using the same simulation in my first post; a 2x2 mosaic of NGC5139, using SimulatorCCD, 1280x1024 5.2μ pixels with 480mm focal length.

Mosaic tool, using 0% overlap for illustrative purposes.



The RA/DEC of the 4 panel jobs generated were simulated in Stellarium configured with same focal length and sensor parameters.

Result:



Success!

I look forward to trying this 'for real' when weather clears.

Thanks for everyone that contributed an especially to Jasem for taking the time to apply this fix.

Read More...