Hi Todor
Thanks for your fast response. I uploaded a ZIP file with an example Visual Studio Project. The Exception happens in line 59 in the CityAdapter.cs file when reordering an item as described. Take City 1 and reorder it by dragging it to the bottom of the screen. Let it scroll for a second or two and release -> Exception. I use Version 2015.1.306.0 of the Common, Data and List Components.
Regarding the scroll speed: I want to modify the scroll speed while reordering. It would of course be great if you could add that functionality.
Cheers from Austria,
Markus