Hi I use an adi-648 and rme madi card as a live mixing system wit SAC software, all works really well. I have a second adi-648 that is a different generation. I recently tried to connect the second unit into the loop with the aim of adding an ada-8000 at the foh position for local i/o. The sync lights stayed on suggesting sync I reset all the matrix settings on both units. I could get local output from the ada but no input, also the main adi after the second had been set to output stopped outputting or inputting, all sync lights remained. I had 3 x ada on i/o 1-3 on main unit, I tried the other ada on 4-8 at the foh position. I was on a tight deadline for the show and had to re configure the sound and cannot test again until january, any thoughts or suggestions to get it all working?

Andy