Does PT Stud have trouble importing hand histories from files for mixed games? Or for "messy" multi-table hand history files, where hand histories from various games and stakes are all mixed together? (If you request hand histories from a poker site, you may receive this sort of "messy" file.)
I encountered problems importing to PT3 in both cases. The files were imported, but the data was screwed up. For example, the stats in the General tab didn't match the stats in the Details tab. I think PT3 had trouble keeping track of sessions when the hands in one file jumped from table to table.