I came across a strange fact in the update to 4.1.0. 
If you send a timecode signal to both adjacent channels A-C or B-D, only channels C and D work and can be controlled. If you send only to A and B, then they connect and are controlled by a timecode. 
Although on 4.0.2 the control works on both channels with absolutely the same settings, then I choose from the mixer which one I specifically want to control at the moment. 
Does anyone know, if this functionality was specifically removed, or is it a BUG???
    
        
            
    
4.0.2
    
        
            
    
4.1.0