PT3 B6 not populating sessions by time

Beta 6 is no longer displaying Session info when attempting to display Sessions - By Time when multi-tabling.
I have 4 tables open. Each table's status is shown when I select Sessions - By Table, but when I select Sessions - By Time the grid just indicates Populating...
This previously worked in Beta 5. It also worked last night after downloading and running the install for Beta 6. But I am having no luck with it today.
Neither clicking the Refresh button nor restarting PT3 corrects the issue.
I have 4 tables open. Each table's status is shown when I select Sessions - By Table, but when I select Sessions - By Time the grid just indicates Populating...
This previously worked in Beta 5. It also worked last night after downloading and running the install for Beta 6. But I am having no luck with it today.
Neither clicking the Refresh button nor restarting PT3 corrects the issue.