Glyphs mini trial font missing

Hi all,
I’m new using glyphs, i start with trial 30days, everything was good until export the font. But when i’am typing all alphabet, some characters was missing. letter M, Y, S , etch.
is this something wrong with export process or i must buy full version to get complete all characters.
Any tips from you guys, all help will apreciated.

Thank You!

Welcome to the forum.

How do you test the font? You might run into a font cache problem. Have a look a this: