I just discovered in my project that that several Cyrillic glyphs like “a-cy”, “O-cy”, etc. have their own top anchors that went out of sync with the Latin ones. The Latin glyphs have them already, is there a particular reason they were added to the composites? Deleting them makes Glyphs use the Latin ones.
You must have hit Cmd+U when those Glyphs where selected.
Possibly. Then I’ll assume it’s safe to delete them 