nav bar doesn't work

[strato]

my Page has 2 sections (first is a tabview with 2 tabs). The navigation bar does not work. What can I do?
I see that the record number above the slider corresponds to the record count in the table of section 2. Queried from console the table for the first section is open in area 3, and the table for section 2 in work area 1. Can I specify which section or table the navigation bar belongs to?