Hi currently it has Plex for LG version 3.3.14 and wont update to 3.315 wich I have read has the solution to the problem. What do I do?
I´ve updated my server pc and nothing changes
cheers
P.S also, I have logged in and out of it. turned it on and off, cut the electicity off and on again, delet the app and reinstalled it. Nothing changes, still 3.3.14 
Same problem here
Same problem for me also
I have now updated my plex media server, uninstalled and reinstall the plex app on the TV, but it still does not work (webOS 3.30, Plex for LG 3.13.14).
There was a hotfix release to 3.13.16 today.