MC works on Mac A but it does not work on Mac B, using the very same cable and HDMI input.
Retina MBP 15' Mid 2012 (Macbook Pro10,1) We both seem to have the same problem with our latest Mac Mini's. This is similar to #248 except I am not connecting two Macs to the same monitor, at the same time. I have this strange problem where MonitorControl Works on one Mac but not the other - using the same cable to the same display.