Ive been watching some tutorials about using the shape builder to create celtic knot designs. The tutorials are very simple. You just use the SB tool to draw over the various sections that need to overlap etc. However when I try it does not do what I want it to do. Instead it does erase the section but the edge stroke of the part that goes under gets a new stroke. Not sure how else to explain it. Please see image and you may understand what I mean.
cant see any edit button for this post so im adding this - Ive also noticed the SB tool is deleting parts that when I am not holding the alt key and the + symbol is showing. This does not make any sense.