When we add some controls, for example, 3 controls in a row inside the first tab item, then 5-10 controls in a row in the second tab item of the tabview, we can only see the first 3 controls in the first tab. In other words, we can only see the controls in the row up to the height of the first tab's content.

The issue appears in SlideView control as well. The TabView control uses SlideView internally.