I have my Protects set up the same way. Looking at my nest upstairs (versus the one in the basement) it has a lot more events, so Nest may have changed how often it checks in. Nearly every device will send an event at least every hour, that is why we choose the last check-in, it was every 30 minutes.
@tonesto7 If we remove these events will it update the logs? I have a smart app that checks for devices responding, and if they don’t have a status in the last 3 hours I get notified that the device may be a zombie. Protects can go months if not years with no status change.
Here is a recent post with a response from ST, about how it is planned for an overhaul:
Here is the official use of activity feed from https://support.smartthings.com/hc/en-us/articles/205379964-Notifications
“Activity Feed provides a running list of events and activity from all connected devices in your smart home.”