I came across this unresolved problem years ago and it re-surfaced while playing with SuperTracks.

The issue was that when using certain software synths, the Acoustic Bass track would 'drop' some notes. By drop I mean the notes were in the event list but would not play. The odd thing is that the track would play fine using Coyote Forte but would drop notes using other soft synths.

I was listening to the SuperTracks demos found HERE and heard it again. If you listen to the M_JAZSWN demo you'll hear one about 18 seconds into the song. As far as I can tell, there are several more later in the song.

I gave up trying to figure out the problem writing it off to the fact it seemed to happen when using soundfonts (SF2) and not Forte. Now that I heard it in the demo using Garritan, I would love to see if a resolution to this is possible. I have a beautiful Acoustic Bass soundfont that I would love to use.

Any thoughts?