When the size is reduced the button's text is hidden and the popup occurs. One should be able to directly go to the collapsed mode without showing buttons with no text.
The attached project shows a temporary solution.
public RadForm1(){ InitializeComponent(); this.radRibbonBar1.RibbonBarElement.ItemVisiblityStateChanging += RibbonBarElement_ItemVisiblityStateChanging;}private void RibbonBarElement_ItemVisiblityStateChanging(object sender, ItemVisiblityStateChangingEventArgs args){ //You can skip SmallImages step using this approach if (args.NextVisibilityState == ChunkVisibilityState.NoText) { args.Cancel = true; }}