Casting from an iPhone running latest iOS update to a Sony Android TV with everything up to date, audio is a few seconds behind the video. Everything is on an Infinity 2 connection at around 70 Mbs and no issues Casting from any other apps (Youtube hits 4K with no problem).
There seems to be a spate of issues with casting BT Sport lately. The other week I was getting random screen freezes, last night I was getting random action replays as if someone was hitting rewind/play during a recording. No explanations or answers, alas.
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