Error on opening font: index out of bounds

When attempting to open a .ttf file (which installs fine in Font Book) I received a popup window with the error message: “Error while reading the document:… (***-[___NSArrayM objectAtIndexedSubscript:]: index 6 beyond bounds [0 … 5])”

Please advise.

What version of Glyphs do you have?

Can you send me the .ttf file?

The latest version. what is your email address?

Send it to support at this domain (without forum or www).