Vca spill and selected channel

Just been using vca spill and noticed a problem. If i have a spilled vca and select a channel then go to another vca, without selecting another channel, then go back to the vca with original channel, the desk sort of half forgets which channel is selected, i can make changes but the display doesn't update changes, i have to reselect. If i use the mouse to make a change the display updates erraticaly.



It's a mixrack with v3.0.0 so maybe that's the problem