I’m relatively new to Glyphs and have been using Glyphs Mini 2.
I have been trying to create a ‘franc’ symbol using existing glyphs mapped to /F and /r. I copy both characters into the ‘franc’ glyph and, once I have them overlapping, click ‘remove overlap’. When I do this, the /F and /r disappear leaving a blank glyph (save the default watermark glyph).
I’ve had no problems removing overlaps on any other glyph.