As shown in the figure, when a tab is dragged to the empty space after the last tab, the drag action fails. It must be dragged precisely onto the last tab. This feels counterintuitive. In all applications with similar widgets that I know of (e.g., browsers), dragging in this situation would succeed. Moreover, when the tab itself is small or on a mobile device, performing this drag is even more difficult.
As shown in the figure, when a tab is dragged to the empty space after the last tab, the drag action fails. It must be dragged precisely onto the last tab. This feels counterintuitive. In all applications with similar widgets that I know of (e.g., browsers), dragging in this situation would succeed. Moreover, when the tab itself is small or on a mobile device, performing this drag is even more difficult.