2019 82" QLED firmware 1401 update now has surround sound issues HELP!

[Foz]

Since my QE82Q70RAT received 1401 update a few days ago my Samsung HT-BD 1255 no longer works with the TV, I select receiver in sound settings but it switches back to TV speakers as i come out of the menu. Is this a bug? Has worked fine until this update, very disappointed that firmware gets released without fully testing.

What can i do to resolve this?

[Landidos]

The only way, at the moment, for fixing firmware 1401 DAMAGES is trying to install firmware 1409. It’s a beta firmware but it solved all the problems on my SAMSUNG 65 RU8000 2019.

[Martorias]

Even after getting the 1409 installed my audio stops working every now and then and I have to "soft reboot" it to get it back. 

[TMc1908]

Same, 1409 doesn't fix things on my QE55Q90R. Still lose audio and need to reset via holding power button and I have to turn off "Input signal plus" on all inputs, which means getting degraded quality!