Unexplained issue - PleX won't detect LG TV as player or cast

[phibins1]

Server Version#: 1.14.1.5488
Player Version#: [Plex for LG 3.90.1, WebOS 4.1.0]

See the following images…

Here we see that YouTube on my mobile device can detect and play/cast to my LG TVs.

But in this image we can see that Plex ONLY detects the Chromecast as a player!

I can’t explain this, in the past … my Plex app was able to detect my friends samsung tv (and cast to it) as a device with no problem.

Any ideas?

Direct Play is turned on …

[Plex for LG 3.90.1, WebOS 4.1.0]

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Update: I set up the Samsung TV again…

See these two images… Samsung is recognized by the Plex app (& YouTube), but the LG is only recognized by YouTube

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