I have more time to test due to teleworking…
Doing the steps FordGuy61 mentioned consistently fixes the issue temporally for me. Works great right after re-pairing. After I turn the TV off and let the TV/PMS sit for a while it comes back.
Having the TV and/or PMS on LAN cable vs. wifi makes no difference.
It’s clearly specific to ONLY the LG Plex app. All other clients I have work great while the TV is having issues.
Probably is specific to nVidia Shield as PMS w/LG TV combo?..I have 1.18.8.2527.
Probably also related to PMS/client combo…I haven’t always had this issue.
Possibly also specific to something about that combo and my Asus RT-AC68U router?..but nVidia Shield seems to have no issues with any other device combo either wired or wireless.
