HEM Issues

[Rexas]

Hi - I just finished playing a session, in which my HEM database was active, working and recording hands. I finished the session, looked back through it quickly and shut HEM down. When I re-opened it just now, it appears to have deleted all of the cash hands that I had stored in it from my entire playing history, but has kept those I've got from tournaments. Has this happened to anyone else/is there a reason for it/can I get them back without trying to obtain lifetime hand histories from every site I've ever played on?