Circle Cuts are not 100% round

[bernd.dk (Bernd)]

HELP with my burns

i cannot burn perfect circles anymore i did this before and it was perfect i uninstalled the software and the downloaded the firmware again for the arduino processor but nothing helps i also cleaned the windows 10 registry for old stuff but nothing helps i know the software can do this because i did cut some perfect circles drawn in the graphical interface of lightburn 9.20 the gcode that i can generate in softburn gives in other programs the same result , so it must be something in softbu…