I recently removed AA 0.4 core on my Print head slot 2 and put in a BB 0.4 core and now it won't come out.... I noticed another post where the Ultimaker Rep mentioned/showed pictures of how to pull it out correctly (vertically with a specific grip) but that didn't work...
Should I take it in to a local shop? Does this mean I will need to get a new print head? I purchased this second hand and its frustrating on what I thought would be pretty darn basic.
Also, on a side note... it looks like the print heads are not lining up horizontally. Could this be indicating an issue?