Need to replug in Sony soundbar to hear sound on Kodi 17.1 RC


I have a Raspberry Pi 3 with Kodi 17.1 RC running on it with a Sony TV and soundbar. I can select movies to watch but I seem to have to disconnect and reconnect the HMDI cable into the Sony soundbar to get the sound to play?

No hardware changes were made to my setup, I just updated the OSMC to the the latest build with Kodi 17.1 RC last week when it became available.

Passthrough is enable on the Sony soundbar and in Kodi as far as I know and I have enabled the activate command in Sony TV Bravia and the soundbar reports “OK” when a check is done.

Any ideas?