just some more info in case it helps
updated to 6805 (still same)
If I open HM2 before I open stars I'm not able to select Active session in the drop down (selected session: ) I can only select a past session.
I need to close HM2 and then reopen and that option is there.
When I do get active session in the box, nothing refreshes as per above. refresh button also does nothing.
EDIT:
Just found a solution. If I select my player as just my pokerstars account it works and the active session updates as I play on stars. I have always been selected on my alias account which includes all the other sites.
Not sure if that is something wrong with my alias then that has been the cause all along?