There is a Minimum Hands Required setting in Options -> Preferences.
Do you have the correct databases selected in Options -> Preferences -> Databases -> Holdem?
Check your filters aren't preventing stats being shown: Options -> Preferences -> Filters
If you still can't see player stats 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