Those who noticed the "weird" sound...it's on the bass RT...I went back to my BIAB-generated song file...it's there, too occasionally. I took it to be a "real" sound..like some kind of fingerboard "boing", and so I really didn't pay it any mind when I was building the track.
Is this something that I ought to shoot off to PG for look at, or are there other RT anomalies like this that others run into?