Yep... same problem here.
Can't add any new local file.
Before the newest version I got, I could simply drag and drop new files in a new playlist.
Now, with the newset update "spotify 188.8.131.52.g0b6df40b", nothing happens.
This was one of my favorite features... I have so many local files that would never come to spotify and I want to listen to. :)
Use the search function. Search results will include your local mp3's as long as their location is included in preferences. Start playing the local mp3 from the spotify search result view. Then you can click and drag it to playlists.
likewise! i can add them to my starred playlist but i can't add them to my "songs" in the your music section.
UGH. why do i pay money for this service!
can't add mp3's.....not good to use spotify as my main player:-/
You are a genius and this worked perfectly for me!