Hello, i have this problem that you can see in the images. Basically the brim gets printed from outside to inside, and at some point the material attach to the outer perimeter but not to the bed, and each perimeter it gets worse. If i press down on the raising material with a tweezer then at some point it stays down. Does someone had similar issues? Which slic3r parameter should i try to tweak? The bed height is accurate with an error of less than 0.05 mm, and the printer is a Reliabot delta, similar to kossel.

I would see this regularly if I tried to use an 0.3mm initial layer height. I switched to using 0.2mm initial layer height and that solved the problem for me.