Multiple styles as one file, crash on export

Glyphs
1

Not sure if this is related to the latest appstore update, because I coincidentally decided to finally do this today, but:

I saved my original Regular font as a copy, and in the copy I added the Italic, bolditalic and bold styles as masters. Then added instances for all 4 styles.

When I export it does nothing, even when turning off the various options (remove overlap, auto hint, etc).

The console shows when trying to export:
4/23/13 7:56:26.327 PM sandboxd[7626]: ([7625]) mdworker(7625) deny mach-lookup com.apple.ls.boxd

and if I try for a second or third time, it crashes with a segfault.

2

Also, I’ve tried compiling and refreshing the features, and there were no errors.

3

It is not recommended to put not compatible styles in one .glyphs file.

But this does not explains the error. Will have a look at it.