Today My MIDI Remote Lost All Its Mappings

[Realist]

It is a bug that has been occurring increasingly frequently in Cubase 14 for some users.
This renders the latest version of Cubase 14 unusable, even though Steinberg claims it has been fixed.
However, the bug has not been resolved in Cubase 14, and I assume there will be no bug fix for Cubase 14 either.
It affects the Globalmappings file, which is created in the Midi Remote folder and contains the assignments.
For some unknown reason, these are reset from time to time.
There are other issues too, such as duplicates of the MIDI Remote.
These issues have been resolved more or less satisfactorily in one of the newer versions of Cubase 15.
You can find more on this in the following thread:

Midi Remote Mappings Disappeared

There are two ways that work more or less. The first way would be: Make a backup of your working globalmappings file. The file is located in the User Settings folder, which can be found in the Documents folder. Cubase usually resets the file, which can be recognised by the fact that it is only 1KB in size. If this happens, replace the file with the backup. The second way: The Midi Remote and the assignments must be there. Export the Midi Remote script. You will then have a file with the ext…

If you’re using Windows 11, there may still be some issues with loopbacks and virtual ports due to the new MIDI service.
However, I’d rule that out in your case, as your MIDI Remote appears to be displayed and ‘only’ the assignments are missing.