Hello. First post on this forum, hope I got the right section.
So, I was trying to print 2 color print, base - white, drawing - black.

So, I use Cura for slicing, I added post processing plugin - "pause at height", so I can change filament.
The other part of print gets "smushy", seems like nozzle pushes in previous white print and sometimes it extrudes a lot of filament that drastically increases height of print.

Here are the pictures of Cura settings (I did try redoing last layer, its does the same). Also, I allways use Babystep Z at start (if it changes anything) and stoped print:
Cura.jpg
Cura2.jpg

I tried this color change on simple letters, it did work