The tables appear in hud window, stats are displayed ok but it never refreshes the stats. if I close and reopen pahud I get updated stats. The refresh rates look fine etc.
Are you using version 1.19.10 of PAHUD? If so, please enable logging (Tutorial: How to Create a Log File) and play for 30 hands on a single table and attach the PAHud.log file to a support ticket and we will look into what could be causing this for you.