It's possible that the HUD positions for seat 10 have been moved somewhere which can't be seen.
Try duplicating the Profile (see
Tutorial: Managing HUD Profiles) as that resets the positions - if you select the new duplicate profile at your table do you then see stats for all seats? If so, you just need to position them once and PT-icon > Save Layout, and set the new profile as default for table type so it will be used in future.
If that doesn't help please
report your problem so that we can investigate further. Attach your log files to a ticket along with the hand history file and screenshot of a single table so that we can see what is going on.