Windows 10 - Having used Reaktor and Massive for many years decided to try Traktor 2 (2.41 (478)). Installed OK from Native Access (1.14.1 (R156)). When I drag and drop any kind of song file into the "Drag tracks from your computer here" area sometimes it says "installing" and nothing lands there - other times it won't allow the drop.
I've uninstalled and reinstalled and have run it as administrator.