Okay, I've tried all of the things suggested above by everybody. All of them. Nothing has worked. Just to re-iterate - the progression is playing fine - except for the bass just dropping out. Is it possible that it's 'written' into the style? Meaning that it's supposed to do that? The way that it is happening doesn't sound 'wrong' or 'bad' which is what leads me to believe it's part of the programming with the style or something...? I'm so new to BIAB that I'm still trying to get a grip on how things work with one another. I have watched one or two videos, I'll try and watch more.