Page content disappears / test session does not work when column set to scrollable

Hi Everyone!

My issue is the following:

I set up a page with an AppBar, a NavBar and a mothercolumn containing the content fo the page.

When I set the column to "not scrollable" it is displayed in the test session and everything works fine. Changing it to "scrollable" leads to an empty page only displaying the AppBar in the test session. I also can not click on the Appbar or Navbar to navigate during the session.

Does anyone have an idea why this happens?

Thanks in advance!

Tom