Result after disabling retraction. (And changing nozzles from 0.8 to 0.4)

Thanks that was it :)

You were right thanks :)

I exchange the nozzle for a new one but no luck Disabling retraction worked. But thanks for your suggestion :)

Yeah thats why i bought new Filament but my point was i never had the underextrusiom with the old one just with the new one Turns out my Extruder sprimg was to hard so my extruder gear ate my Filament. The old Filament was so hard this wasnt an issue

But thanks :)

Yes the print immediately before was good (see my other commend) 2. Try same settings (left) seems a little bit better but still not good

Print i did immediately before. Main differences no supports and less Variationen in horizontal Crosssection ?