It may well be something to do with the latest offering of QT, many changes have been made since 5.15. I looks like you have solved your problem, what was it?

@jeanmilost Your logic seems to be correct. What you have to do is to move the re-calculation of Scrollbar size & position to the Rectangle rcPageContainer because you are applying scale for that. Rectangle { id: rcPageContainer objectName: "rcPageContainer" ... /// called when page viewport width changed onWidthChanged: { sbHorz.size = rcPageViewport.width / rcPageContainer.width sbHorz.position = Math.min(Math.max(sbHorz.position, 0.0), 1.0 - (sbHorz.size)); } /// called when page viewport height changed onHeightChanged: { sbVert.size = rcPageViewport.height / rcPageContainer.height sbVert.position = Math.min(Math.max(sbVert.position, 0.0), 1.0 - (sbVert.size)); } }

@jpnurmi Thanks for the clarification!

Hi, Looks like you are trying to use a Ui_otherPage without setting it up. Why not use the widget you created with it ?

My first thought is that QGroupBox probably provides a sizehint() that is zero if the widget is not visible where your other widget probably does not do this. The QStackedWidget would provide a sizehint() based on all of the children. When you hide the children you make the end result no smaller than the largest child. Another idea to implement this is to have a common set of options always visible and show/hide the additional parts that are unique to the 'multi' and 'other' views. This will autosize.

Hi, Sure you can. One thing that you might use is a QProgressBar (with min and max at the same value so it's animated as in don't know how long it can take. Or you can use a gif in a QMovie object.