Updating glyph info doesn't work

I have three glyphs in my project that have the correct name, but somehow, Glyphs doesn’t automatically assign the correct info. The glyphs are: Delta, Omega, mu. Clicking “Update Glyphs Info” doesn’t do anything.

Renaming the glyphs to something else works (the glyph info is correctly assigned if I rename a glyphs to alpha,

can you send me the .glyphs file?