Hello Mascis,
Just to elaborate, are the chords you are wanting to play displaying on the chord sheet? This may be related to how you are entering the chords in the chord sheet. A list of compatible chords and how they are inputted in the chord sheet can be found here:
http://www.pgmusic.com/tutorial_chordlist.htmIt is possible that the Artist playing that specific RealTrack did not record this specific chord. Are you using RealTracks (Green) or MIDI Tracks (Yellow)?
Alternatively, you can send the song you are working on to support@pgmusic.com so we can review the file and see if we can get those chords working for you.