Hi,
In my application (latest Telerik WinForms and .NET 4.7.2) I have a grid view control which is fixed in size, scroll bars always hidden, multi select is enabled. If I press and hold the left mouse button then drag the mouse downbelow the control it scrolls (not sure why) and then throws an exception.
I have managed to reproduce the issue with a simple test application (attached)
Kind regards
Toby