I was using v3.0b17, updated to v3.0b20. Since then I have not been able to save or generate Pokemon correctly. The OT field and Pokemon name field are constantly given random blanks. I just now experimented using v3.0b17 (so, downgraded) and I'm no longer experiencing this problem. It seems 20 is acting up for me.
EDIT: Just tested something else. I saved my Pokemon using the older version, then closed it and opened it back up. The OT field was still filled in. I then upgraded to the newest version once again and opened the Pokemon file I just saved, and it had a blank OT field. I used the old version once more to open the exact same file again, and this time the OT field was filled in. It seems that, for some reason, the newest version isn't loading, saving, or generating the OT/Name fields correctly for me.