Sounds like the font doesn't allow the action.
What font? Check the properties as regards its permissions.
Several, including Myriad Pro, Brannonball, Marcelle and College.
I've tried checking the properties (Is that the same as clicking the font and pressing command+I to see whether it is locked or not?).
I don't think there are font restriction issues for packaging (other than CJK fonts are not packaged), just for embedding.
Any "odd" or illegal characters in the font names or the file paths leading to them?
Ah, thanks, Peter.
I might have been thinking about Type 1 fonts...it doesn't collect them, correct? Been a while since I tried.
Always used to collect them -- pretty much all I used for years before switching to OT.