MTRoW devices set in Catalan language show some screens in Arabic

I seem to have "solved" the problem. It seems like the MTR app's settings are not translated to Catalan. Then instead of simply choosing English as a secondary language for anything that's not translated, it goes to Windows' list of languages and, if there are no more languages set up, it chooses the first one in alphabetic order instead of a more globally understood alternative.

To solve this, add another language to the list (either English or Spanish should be fine) and run the following powershell command:

powershell -executionpolicy unrestricted c:\Rigel\x64\scripts\provisioning\scriptlaunch.ps1 ApplyCurrentRegionAndLanguage.ps1

Once you reboot, the settings should show up in your secondary language until Microsoft decides to complete the translation.