I'm adding a tab widget with 3 panes and I'm trying to add 2 columns to each of the tabs panes
It works for adding the columns to the first tab pane but when I select the second and third tab pane in the navigator I can't see the tab pane it is not visible so it is not possible to add the columns to the second and third tab pane.
Here's a screenshot of the second tab pane selected:
As you can see, the tab pane is not visible only a blue line under the tabs itself
and here's a screenshot of the first tab pane selected:
As you can see, the pane is visible and I was able to add the columns.
Here is my site's read-only link: