What settings could be adjusted to fix this?
I recently received my new E3D NozzleX 0.8.
Since PrusaSlicer do not come with presets for 0.8 nozzle, i added the profiles from Bob's Project Notebook. The 0.4 profiles works great with both PLA and PETG. The 0.8 profiles work great with PLA. Then I received a spool of Prusament Galaxy Black PETG. Printing a flower pot with it resulted in the seam in the image.
Whats settings could be relevant to look at to fix this seam?
Also, I'm using PrusaSlicer 2.3.0 and Firmware 3.9.0 for my Prusa MK3S.
I'm not the expert on settings, but when I have something that prints with artifacts which definitely should not be there, I will try re-slicing the project with cura instead of prusaslicer. Sometimes (not always) the cura-sliced print will be better. In general, however, I've found that prusaslicer produces nicer prints than cura, with the top layer having fewer artifacts with prusaslicer, very consistently.