Mobile Presence after power outage

Today the power went out for about an hour, once it came back on, my wife’s phone immediately registered as having left, when in fact she never did.

We use Life360 to register presence and it was showing at home which is correct

Is there a better way to get it working again rather than removing her phone from all Pistons, deleting the device and starting over again?

What a flippin pain

Yes! Just open the life360 connect smartapp and step through it to done. The phones will update the location with ST.