I have Sonos Beam and and QM2 sound bar tried both and neither are recognised by the the TV on the HDMI ARC port. My DVD player is recognised and works perfectly

I think it was working initially while I was first setting the TV up until a recent software update last weekend.

Just as I had finished the set up I ran the update and now can not get any sound out of the HDMI ARC port.

Any ideas anyone?