I just used command Add Glyphs and this is what happened. I was working with an OTF file not yet saved as Glyphs file. I tried to add glyph _corner.inktrap. I hope this helps, it is not the first time I noticed this issue.
I just used command Add Glyphs and this is what happened. I was working with an OTF file not yet saved as Glyphs file. I tried to add glyph _corner.inktrap. I hope this helps, it is not the first time I noticed this issue.
Fixed it.