Very unusual given that the soloist gets muted when you mute the drums track, it sounds as though there is another track somewhere that is taking on the mute setting also.

What version, exactly, of BiaB are you running?


BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones