HI, have just installed the newest version of the beta. (still running on Yosemite) FM still crashes the moment you put the cursor on an audiofile (mp3) and you double click in order to open the miniplayer to overhear the file. sometimes you get the error message :fm hit a bump or it just vanishes. A kind of work around for the time being is: drag the audio to the timeline and have it played, if you are not "happy’ then delete the file from the slideshow and drag another in the slideshow. But the mini audio player that worked well in FM 4 is now a showstopper !