I should know better than to download new software right before a gig, but I got over excited I guess. I'm having the same problem and it's totally wrecking my night... The video is not crossfading with the audio on my TTM57. I looked on the "Known Issues" page and didn't see anything about this, which is very disappointing. I would have held off downloading it had I known there was an issue. I really hope it's fixed soon!
