Does PT2 still have to import a load of old hand histories?
Check that your filters aren't preventing stats being shown.
Options -> Preferences -> Filters.
..and double check you have got the same database selected that PT2 is importing into.
If you still can't get it to work, Please enable logging, reproduce the problem on a single table and play 30+ hands, and send the PAHud.log file via the
Support system so that we can review your configurations and troubleshoot the issue.
Tutorial: How to Create a Log File