Language by default for the admin vs additional users

Hello,

I’m using the latest version of Plex (1.18.3.2156) on my Synology NAS DS218+ and it seems to be recent, but I have issue with the default languages of my movies/tv shows for my managed users vs my admin account.

By default, my Plex and all my users are set to be in French. When I connect using my admin account through my Roku with Plex app, all my movies are in French. No issues.

But now, when I’m selecting managed accounts, they are in English. I need to change the track before playing the movies/tv shows and it is quite annoying. My kids are simply not that geek.

Any idea how to resolve this?

Thanks

see Managed user account can't set subtitles and audio language