I upgraded to snapshot 2.2 and I ended up having to uninstall and reinstall the bindings. I still could not fire off the mqtt commands so I uninstalled the mqtt action. Then the mqtt commands started to work. I reinstalled mqtt action but I noticed that on one mqtt command where I use Telegram for notification, I started to receive two notifications. Today I had a power outage and once again my mqtt commands stopped working. I rebooted the openhab server and the mqtt commands did not work. I verified through Alexa that I could control those devices. So I uninstalled mqtt action and they started working again and the number of notifications for that one mqtt device is down to one.
Is mqtt action required to be added? How to check if there is remnant from the 2.1 build in the system.