My xbox one s running emby theater works great for everything but live tv. It direct streams and after about 2-10min it will just stop playing, xbox will just hang on the last frame and the server shows its still playing. We just exit the channel and then play it again with no issues for another 10min or so and repeat the process.
timeframe 7pm, then again at 7:04pm then again at 7:09pm. Do not have this issue on PS4 as it transcodes the stream.
In the server log around dec 10 at 7pm you can see my iphone connects, thats me trying to see what the logs say. I cant really find any errors on my end.