Using attached layout there's some grid which aren't well displayed when selecting on content one of their elements. And as soon as you resize a little the grid (directly with mouse on content) it's then well rendered.

To reproduce:
- select the tab named Børn
- click something on the right side such as the Label with text "Er denne anmeldt til statsforvaltningen:"
==> you get as on the attached capture
- select the GreidPane 2 x 11 in Hierarchy
==> you get the other attached capture
- resize the grid on content
==> you get the last capture where all is rendered appropriately