Printing from Ender-3, Cura 4.6.1, octoprint.
The brim is very uneven but reproducible over two different prints. At the same stage of printing the very line of the brim, the extrusion fades away to almost nothing and is really just a smear on the bed. Then the feeder suddenly starts over feeding creating a lumpy deposit. Each line of the brim is of course a little bit shorter so the discontinuity appears as a slanting line. See the photo.
The print itself seems fine.
Printing with a skirt is fine.
Comments would be appreciated.