I'll move this to the PAH forum.
When you enter the Layout Manager, you need to select the correct site and table size from the drop-down lists at the top of the page. Are you sure you've chosen the correct type?
Then when you Save the layout the tables should redraw.
Are the 6 seat tables identified as (6 max) in the PAH main window / table list?
Do you have the latest version
1.19.6?