Out of Session filters with cards result unclear

[Steinpilz0104]

Hi

A fellow of pokerstrategy.fr has made the following:

He selected AQ in the filters out of the Session table, as you can see in the filters:
http://img15.hostingpics.net/thumbs/mini_467899screen2.png (http://www.hostingpics.net/viewer.php?id=467899screen2.png)

In red, the hands which went to showdown. The black curves shows nothing.

What is the selection about? The column "card" does it refer to villain's cards?

Thanks for your answer and regards

[Patvs]

Does he have datamined hands in his database? (hands with no hero, with no known holecards?

Update:
http://www.holdemmanager.com/Downloads/HmUpdate_Release_1.12.11_02Oct2012.exe

Does he have the same issue if he reimports his hands into a new empty 1.12.11 database?