I have a Sony soundbar HT-X8500 and a Sony Android TV KD-49XG9005BU.  I have connected these via the eArc connection using HDMI. I purchased this HDMI cable https://www.amazon.co.uk/gp/product/B07KWNPZ1L

Now, the following happens frequently when viewing TV (either internet streams, cable etc.)
- the TV output continues to randomly switch between the TV Speaker and Audio System (soundbar).

I have no idea why this is happening.

Has anyone experienced this issue before please?

Thanks
Ben