OK so I'm new to smart tvs. I recently bought a 65'' TCL series 5 tv. I love it so far however I am having an issue with 4k video playback from USB, Plex, and Emby. 1st the plex and emby when I play the file it takes a bit then restarts my tv. The USB I tried playing a 4k video file that I borrowed from a buddy and it won't play says the file is corrupted or damaged however it plays perfectly fine in his TCL series 5 tv. Normally I use plex for all my videos and never have any issues till now with the 4k. any help would be greatly appreciated and I am far from a computer guy so I'll do my best to answer any questions