Universal Media Server | Forum

Those logs are not much help. will need trace logs to see what is happening, see the section above in red on how to do it.

At a guess I think I know what is happening though, my parents have a similar TV and I was having problems playing some formats. Turns out the conf is missing the setting for bit depth so UMS was transcoding when the file should be streamed. Transcoding UHD or 4K takes a high end computer and fast network to keep up, which is probably why it tries to play but not getting the data fast enough so gives an error.

I re-wrote the conf for their model TV but it might be similar to what yours is capable of if not 100%

I too noticed that two renderers were showing in UMS for that one TV, as far as I could tell each one has different services. One for streaming and I think the other for remote control as a guess. for some reason there are separate so UMS picks it up twice as two different renderers.

I'm not saying that's the case here, but some devices actually have multiple renderer instances that can render to different outputs, like for example when using picture in picture.