I recently ran into an issue with the Telerik RadTreeView that had the EnableDragAndDropBetweenNodes property set to True where the horizontal line showing where the node was going to be dropped was not showing. To fix it I had to add the following to the page’s CSS:
.rtDropAbove
{
z-index:99999;
}
.rtDropBelow
{
z-index:99999;
}




Hello Kris,
I have tested our online demo(http://demos.telerik.com/aspnet-ajax/treeview/examples/overview/defaultcs.aspx#qsf-demo-source) and everything is working as expected. Could you give us more details about your case(browser and controls version and which skin are you using)? Keep in mind that you could open a support ticket and send us your sample to examine it locally.
Regards,
Peter Filipov, Telerik Team