To me it’s rather perplexing. As stated, Youtube videos will either play normally or not at all. Those that don’t give an error on the TV, saying the browser does not support video format.
Not a single video from Twitch would play whatsoever.
I’ve look through previous threads on this kind of issue, but none of the solutions worked. I don’t believe the Adobe flash plugin I’ve installed for Chromium-based browsers is of any help.
I’m not in the Steam beta and the game is not blocked by firewalls. I can play all videos (including those on Twitch) normally in the Steam overlay, but as soon as I put one particular video on a TV, it refuses to play and gives the aforementioned browser error.
Maybe the videos that won’t play used the H.264 codec, and seeing from recent posts that TU is using the Unreal engine for their browser, that could be why. But I could be wrong, so I don’t know for sure.