Hi,
You can Rename the Device to your liking by either right click on it and -> Rename or By clicking on Device name in Main window once you select it on tree or even do same in Portable devices under MMW Options and device configuration by clicking on Device name.

Reason for that is that newer Apple devices do not send correct Device USB UUID and we need sort of guess it.

Anstatt den neuen Namen des iPad Pro (4. Generation) im Mediatree anzuzeigen wird immer nur der Name meines alten iPhones angezeigt.
MM4 version: 4.1.30.1914
iOS: 14.2