I had developed a small app to limit the volume of my TV throught Smartthings. I was monitoring volume change events and I was resetting the volume if it exceeded a preset value.
Since maybe a couple of months ago, my app stopped working. I tried to debug it now, and it seems that my TV is no longer sending volume change events even though my app has subscribed to it. In addition, the status page of the TV on Smartthings portal reports the initial volume when the TV is turned ON and does not update when you manually change the volume on the TV as it used to.
I tried removing the TV from Smartthings and reconnecting it but no change.
Is anyone aware of a firmware update or any other reason why my TV is no longer working as it used to?