Thank you for reply.
I updated both client and server and current numbers are:
Plex Server (QNAP): Version 1.24.2.4973
Plex Client: 5.24.1
I tried TV reset as well.
Unfortunately, problem persists - terrible initial performance and unable to play anything.
Attaching piece of movie which I watched on that same TV before TV upgrade - now it fails to play; it is played w/o problems from USB / LG Photo & Video.
It also have rasterized view of the menu elements, as mentioned in LG WebOS clients suddenly transcode (burn SRT), causing stuttering not seen before.
On all other non-LG clients (Smart TV, Amazon Fire TV stick etc.) all is working as expected.
Regards,
Dejan
Smrt.Txt - MKV info (3.5 KB)
Smrt.zip - 1 minute MKV (9.4 MB)
Plex Media Server Logs_2021-09-15_22-06-45.zip (1.4 MB)