Weird circle whislt printing

I’ve created a simple circular model in Solid Edge and processed in Cura 4.9x which shows no defects in the sliced preview. Yet the printing produces the weirdness in the attached image. I recently printed circular models with no issues. Any Ideas?IMG20211104103236
Printer is a A350 with no firmware updates or modifications.

Regards
Graeme

Oops! Its an optical illusion wher the filament passes over the grid lines.
I’ll be a bit more observant next time!
:thinking:

Regards
Graeme