Not getting low flow alert

I have a Rachio system with a Rachio flow meter. My gardeners turned off the water so they could do their landscaping work and forgot to turn it back on. I realized this days later. Seems like my Rachio system should have alerted me to this issue due to zero flow for all zones.

I checked the flow-meter status under Controller Settings > Accessories, and it says Connected, Good battery and Excellent signal strength. And there were no notifications under the Flow Notifications tab when I noticed the issue, so it’s not an OS-level notification issue.

Any thoughts about why this work? From what I’ve seen this is a feature of the system.

Thanks,
John

My post is feeling lonely. Anyone have a thought, or do I just need to contact Rachio support?