BlackMagic Output Destination does not recognize Ultrastudio

HI all,

i´m using a MacBook with MimoLive connected to a UltraStudio 4K mini via OutputDestination. All works fine. But when i switch to my MacMini or my other macBook the device does not show up.
i just swapped the exact same cable to the other device and the BlackMagic Output Destination just show NO DEVICE.
Did i miss any driver or something like this. i realy can´t find the issue…

Does ist work with - for instance - DavinciResolve?