So this afternoon I needed to turn down my side of the car because the missus has hers on ****** hot all of the time and I noticed that I can no longer change the ventilation speed of the drivers side. This is what I am used to seeing (taken from a post on here). Note the fan speed icon position. What I see now is just the one fan icon on the passenger side, not the middle icon. I now have a grayed out option to change the drivers side. And when I select it to change the speed I get the above error on the main MMI screen. I've messed with the sync settings, looked into the MMI settings and have found nothing relating to it. I have been able to separate the blower speeds in the past so I have no idea why this has suddenly happened!