I wanted to post to explain some of this behavior and what steps users may take in the future when running into this problem.
First, all Meraki hardware is designed to work out-of-band. This means that if the app is showing things as offline, it might just be the connection between the hardware and the Cisco Meraki cloud. In these states, the hardware will continue operating per the last configuration it received from the app.
Second, if these issues persist past logging out and back in, it definitely merits a support case. We expect this information to be readily available, or at least available by using the pull to refresh - pulling down on many screens should prompt a data refresh.