Not sure when things changed, but there was a time I could go into individual playlists I had created and change the order of the songs from my initial selection. Now when I try to move songs to a new position it is not so easy.
In trying to resolve the issue I changed the view of the playlist from Playlist to Songs from the top View menu. This “compresses” the image of the playlist, showing more songs on the screen and allows me to move the songs about in an easier way.
There are, however, still limitations. If you have the scroll bar on permanently at the bottom then trying to move a track down the playlist is limited as the track can’t get over the scroll bar. Solution - don’t display the scroll bar on Always. Go to Settings>Appearance and change the scroll bar setting to Automatically based on mouse or trackbar.
Sadly this is not the end of the problem. Depending on the number of songs in the playlist, moving songs towards the bottom of the playlist can be stopped by the mini player. I have not solved this issue as it appears one cannot move or hide the mini player. The only solution in this case is to make the change in two moves.
The issue of moving songs in a playlist is the same when trying to move a song up towards the top of the playlist. Again, depending on the number of songs in the playlist of course, you cannot always move songs to the top in one go and have to perform the change in multiple moves.
I apologise for the complex nature of this issue and I hope I have described it as clearly as possible. Any thoughts or suggestions would be very welcome.