Hmmm I’ve never used Fen so I’m not sure if it works without premium services, but it sounds like RD isn’t working. Did you check if the files that are showing are from RD? It’s highly unlikely that the latest John Wick only comes in 4K. I recommend trying Stremio + Torrentio + Real Debrid, the UI is just so much better and addons a lot easier to install than Kodi. Also I’m using my old laptop instead of Android boxes. It’s a lot faster plus it circumvents the issue of sharing Netflix with someone not from the same household.