My wife and I both share our location to each other. On her phone (S20+), Find Device shows both of our phones along the top, making it easy to locate mine. On my phone (S20), only my device shows on Find Device. I must enter my wife's Google ID & Password as a guest and then I can find her. Everything appears to be the same on the 2 Galaxies. We both have granted the other full location permissions. What am I missing?