LG webOS TV not loading plex app

[SE56]

It maybe a good idea to read through this discussion

“Unable to find client profile” errors on LG Smart TVs, Long Pause Before Playback

Server Version#: 1.14.1.5488, on QNAP Player Version#: Plex for LG 3.86.1 “Unable to find client profile for device; platform=webOS, platformVersion=4.1.0, device=, model=OLED55B8SLC” Also seeing on a LG 55SK8500PLA. Video takes a long time (30s or more) to buffer then eventually starts playing. Error message repeats every 10 seconds throughout playback. Also seeing this streaming from my other server running 1.15.0.659 on Synology.