I have two Plex servers. Windows has no problems. I can't update Plex on the Raspberry Pi 3b. After downloading the update I navigate to the folder to execute but it wants a password. What password? for the update file or the Pi? Either way I don't have it.
I re-imaged PlexPi and now I get the posters. Just didn’t learn anything
Same answer as in your other thread. Don’t use a SD card image from some shady youtube channel.