Location sharing glitch in Messages on iPhone

Live: Green Pulse indicates Live feed from the device (User may be active or maybe not)

Now: Blue Ring indicates the device was last located here but currently may not be connected to the internet.

1. Live Status: When a person or device shows a "Live" status, it means that their location is being actively shared in real time. This can be useful, for example, if you're trying to meet up with someone and want to track their movement on the map.
2. Now Status: The "Now" status indicates that the person or device's location was recently updated. It means that their location information was refreshed at some point, but it may not be in real-time. The exact time of the last location update may vary.

The pic below may help you understand it better of multiple devices