I don't know, does anyone know if there's some rule about the metadata not being able to handle numbers? I would be shocked if it couldn't, though.
As for what to do about it, the only thing I can think is try some variations and see what works and what doesn't. You've got numbers (02) and a symbol (-) in there. Try it without those, try just one number in a word or something (Hou2se) and see if it will come through that way. Sometime in unix "escaping" characters is important. You might try (\2) instead of (2). At any rate while you're messing around maybe the real answer will come to you.
You might also just try to find some software where you can fix the metadata in a gui or on the command line, without having to reconvert the whole book. Not sure right off what those would be, but it might save you some hassle.