QLabel Style Not Applied When Placed in Grid Layout Inside QScrollArea

When placing QLabel widgets inside a QGridLayout within a QScrollArea, the applied stylesheet does not take effect. However, the same QLabel style works correctly when the label is placed outside the scroll area.

Steps to Reproduce:

1. Build and run the attached example project.

1. Observe that the QLabel widgets inside the QScrollArea do not apply the expected style (e.g., background color).

1. Compare with a similar QLabel placed outside the scroll area that does apply the style correctly.

Expected Behavior:
All QLabel widgets, whether inside or outside a QScrollArea, should apply the stylesheet consistently.

Actual Behavior:
Labels inside the scroll area do not reflect the applied style, unlike those outside.

Workaround:
The only way to force the style to apply inside the scroll area is to:

• Not set a parent on the QLabel

• Set the Qt::Window flag on the label

This workaround is not ideal and breaks normal widget hierarchy and layout.