Dragging playlist folders is broken on Windows and OS X

[noahjgreen]

I just started using Spotify and am having tremendous trouble dragging playlist folders around.  Sometimes, they refuse to move.  Sometimes, they refuse to nest within each other.  Sometimes, when I try to nest a folder into another one, all the other folders inside come out of it.  Sometimes I can drag them one row at a time, other times not.   Please advise.  Thank you.