To reproduce:
- Add RadLienarGauge to a scrollable panel.
- Start the application and scroll.
- You will notice that some elements are not painted correctly.

Workaround:
- Override the IsInVisibleClipBounds in each used element:

public class MyTicks : Telerik.WinControls.UI.Gauges.LinearGaugeTicks
{
    protected override bool IsInVisibleClipBounds(Rectangle clipRectangle)
    {
        return true;
    }
}