I have developed a "tiny" flight pack solution that uses Magewell USB boxes/cards. Unfortunately it seems that when vMix loads previously presets the GUID:s used to identify the camera inputs does not work if something has changed in the USB chain. For example, if one dongle is inserted into another USB port or hub.

Therefore I request that if a camera source is not found via its GUID, vMix should attempt to use the device name instead. And if multiple devices have the same name, connect the first to the first "non identified" camera Input, the second to the second, and so forth. Perhaps this feature should be an option, ie a check box for "Attempt to use device names" in the Input selection pop-up window.