Bapu, if I can't use 2 synced together, that defeats my purpose to use Mixbus to record live! Sometimes for live recording I need at least 24 or more tracks realtime. Mixbus seems to be working fine on my laptop so I will use it. It's just disheartening when Mixbus worked on both rigs so well until upgrading to 3. Even Ben at Harrison can't seem to work it out.
I saw the other tip about toggling the buffered input switch every time you open Mixbus. I may give that a shot and see. Thanks, guys!