Export failed (invalid DICT array size) — more verbose errors?

[rbmntjs]

I ran into this error a dozen times before simply trashing all Font Info and starting over, which solved it. However, I don’t believe I did anything… weird. I entered Stem values and Blue Zones (even number), and now that I’ve redone it, export works again. Could these errors be more verbose, or is this a Python problem that lies deeper?

[frederik]

can you email me the UFO file? or a sample UFO that produce this output error.

thanks