Steps to reproduce:
1. Add two RadListViews to a form.
2. Fill them with some items
3. Set AllowDragDrop to true on both
4. Run the project and try to drag an item from one list view and drop it over the items of the other.

You will see that the item is not moved but instead remains in the source list view. You will be able to drop the item in the target list view if you drop it over the list view element.