I installed the update this morning (3.6.4) and I'm experiencing some weird issues in regards to the "play" button at the top. While playing an album, if I pick a new album and hit the play button at the top, it populates the tracks in the "Now Playing" but starts at the beginning of the old track I was just listening to. If I clear the now playing list and then pick a new album, it still plays the old song. In order to clear the old song from it's cache, I have to kill the app (just using the recent apps button on my phone and swiping it away) and then I can begin playing new songs.
Also, if I'm listening to an album and then press the trash icon at the top, the tracks disappear but it also begins playing the track I was just listening to, from the beginning. It doesn't show up in the "Now Playing" screen and I have no way to turn it off other than using the recent apps screen.
I hope all of that makes sense. I'm running CM10 Stable (4.1.2) on my rooted HTC One S.
EDIT: For what it's worth, my server is MusicCabinet 0.7.18beta2.