sAcn on 2 desks

Unpatch the fixtures which should controlled from the other desk.

What you're seeing is probably the result of your console still sending the colorsources' color home values. And since sACN usually merges multiple sources by HTP (Highest takes precedence) the other console can't achieve e.g. RGB=0/0/255 while your console still sends RGB=255/255/255.

Priorities would indeed be one way of solving this. But you'd need to be selective about it since you do want your universes 1 and 2 to win. In Patch > Protocols you can set properties for individual universes. Setting universes 3 and 4 to 99 would probably do the trick.

The other way of solving this would be to make sure your console doesn't send values on universes 3 and 4. You can achieve that by unpatching them (Patch: Chan 101 Thru 300 At Enter, Enter), or by making sure all channels patched to those universes send 0 for all their parameters.

Perfect worked a treat thank you

He gave two solutions, wich one did you use?

We currently go the route of releasing the fixures from patch.

I prefer to create a Preset 9998 which has all NIPs for every fixture set to 0 dmx value. Takes some time to create but once a show comes, I can just patk those fixtures in Preset 9998 and then later if the Touring console is having issues, I can always unpark and have quick access to my fixtures - very good for troubleshooting.