FYI… this exact example came up last year during the very first initial drop of their app (Current Missing Features & Bugs with the iOS App Experience Preview - #32 by ApexAftermath). This was fixed as I remember checking myself back in March so its regressed again now.
From what I remember the plex metadata agent was incorrectly taking the logo from tvdb https://artworks.thetvdb.com/banners/v4/movie/406/clearlogo/6124c3aa2ca9e.png over the ones from tmdb.
