I received a large error message relating to HM3 mid-session which I forgot to take a note of. Since then, there are no hands to be found in any folders on my computer from Pokerstars or PartyPoker where as previously there were. My MTT graph is now completely different, where as before I was up $450, and now it shows the following - https://i.imgur.com/KYterao.png
I'm aware HM3 is in beta but the fact that all of my hands are now gone is also affecting HM2.