Qt widgets overlapping when showing hidden widget.

[robby876]

I have created a layout as follows:
=> widget
Widget=>formlayout=>widget=>formlayout=> widget => widget
=> widget=>formlayout => widget :starts hidden and can be shown to show options

All widgets are subclassed with my own functionality.
I have a widget that is show and hidden, depending on whether the settings should be shown.

When this is expanded, it overlaps the other widgets.

I have played around and tried a number of things, none to any avail... I suspect this may be a bug in Qt.

The top widget shown above, is inside a scroll area.

I can provide anymore info if required.

Can anyone help?