To self-fix an import problem that corrupted a few of my HH's, I exported all my hand histories to files, purged my db, manually fixed the corrupted HHs, then re-imported them.
Upon doing this, I discovered something else. PT3 merged a Full Tilt Tourny HH with a Poker Stars cash game HH in the import process, even though the 2 HHs were in different files, and put that bastard hand into my cash game results. So there's a 10-20 hand where I win $14,000, because it used the chip amounts from the tourney HH!
I will file a ticket and link this thread to it. I will attach PT3's bastard Hand History, as well as the two original files that it merged.
