Just found this thread. I am experiencing exactly the same issue. On all of my players except app.plex.tv (i.e., not working on my-IP web player, IOS, ATV). See below the error, which seems to be the same one as the one here. Can you also help me with this manual fix and when is the ETA for the bugfix? I am also experiencing similar issues with the new discovery services, so this may be related?
