Strange behavior G3 when working with COLOR font

Glyphs
1

I just reopened a file I am working on after a week and I noticed something strange. A week ago all worked well.

In the font preview all glyphs built with components suddenly have four times the width of the base glyph. I have four color layers.

When I open a glyph, the Fallback layer is four times wider, but when I select a color layer, width is allright. Any idea what is happening here ?

macOS Monterey 12.7,6, G3 cutting edge 3.5

Schermafbeelding 2026-09-04 om 13.16.05
Schermafbeelding 2026-09-04 om 13.16.05874×268 30 KB

Schermafbeelding 2026-09-04 om 13.23.57
Schermafbeelding 2026-09-04 om 13.23.572654×960 158 KB

Schermafbeelding 2026-09-04 om 13.23.48
Schermafbeelding 2026-09-04 om 13.23.482740×960 183 KB

Schermafbeelding 2026-09-04 om 13.13.45
Schermafbeelding 2026-09-04 om 13.13.451520×978 116 KB

2

Can you send me the file?

3

I will send you the file, but I have re-composed the glyphs (in a new file) and it works fine again.

4

Still would be good to have a look at that broken file.

5

I sent it to support@…