Looks like my Homey Pro updated to 12.9.1 yesterday at 6:55am, and Samsung Smarthings app updated to 3.6.2 today at 12:55pm.
The soundbar is back 
There still doesn’t seem to be two-way comms though - Homey doesn’t know when the soundbar has been turned on/off via the remote. And it used to - for the first few days that worked fine.
I had flows that triggered off the soundbar turning on/off - it would handle the TV, dim lights etc. Those bits don’t work any more. Here’s an example
The flow works fine via the Black Button switch. But using the Samsung remote to power-cycle the soundbar has no response in Homey. The flows don’t trigger, and the soundbar tile in Devices doesn’t change state.
