I use BIAB as a backup for bluegrass banjo practice. Many bluegrass songs contain a two beat measure stuck into a string of regular 4 beat measures. While I can change the time signature in BIAB with no problem, I'm finding that Real Tracks can't keep up. I use _BG_BAND almost exclusively, and it can't follow the change to a 2-beat measure and back to a 4-beat measure. Some or all of the instruments drop out and come back during later measures...never in a regular pattern. I never had this problem when I just used the MIDI C_Jethro style. Is there a way around this problem?