I got a problem that I am not able to open a .ttf file with Glyphs 2.6.1. I have no idea with this, anyone does? Cheers.
The document “ Font-Name .ttf” could not be opened. Error while reading the document: /Users/username/Library/Fonts/ Font-Name .ttf
(662 -[cmap_format_2 decompile:font:error:])