My guessing is, the main problem comes from the inconsitent temperature regulation of the right extruder.
I played around a bit with pid and there is NO change on the right nozzle in temperature rising and falling ±7 degree.
Left extruder regulation is ok, the temp sits on point.
@Riskey, please forward to your devs, right nozzle has a very limited temperature regulation, pid values doesnt work for the right extruder.
I am printing only with the left nozzle right now and have nearly similar problems on the left side but not that often so this could come from my really old brittle filament, i will compare.