Hi @bravenel
I'm not sure if I've found a bug or not but thought I would report it to you.
I had defined a water leak sensors under the 'water' section of HSM.
I have since deleted them but when one goes active it shows as an 'Alert' in red against the app.
As you can see nothing is defined.
I had the same issue - I had one sensor manually selected and then unchecked it at some later time. Notifications kept coming even though the sensor was no longer connected. I had to completely remove HSM and set it up again (without that sensor) to stop those notifications.