MTRoW devices set in Catalan language show some screens in Arabic

On Microsoft Teams Rooms on Windows devices setup in Catalan language, all setup, and settings screens are showing up in Arabic, while user-facing screens are showing up in Catalan, as they should. I have tried relaunching the Powershell commands to set MTR's language according to Windows' language as described here: https://support.lenovo.com/us/en/solutions/ht513022-how-to-change-the-language-displayed-in-microsoft-teams-rooms-mtr , but nothing changes. I have seen this problem in several machines in several organizations, mostly Lenovo's ThinkSmart Cores, but I have also seen it with Yealink's MCores.

Has anyone encountered anything like this? It seems like a bug in the MTR app's translation. How can I report it?