Sorry for asking, but I still didn’t get it, did you try it with your own Google account on your wife’s phone?
That would be the simplest way to look fot the root cause of the problem.
For me, after the crash or maintenance, whatever, today, everything works now, when returning home i first checked if GA still works and it did.
After that, I connected the Animus App again, this time I was asked to enter a PIN, which didn’t happen yesterday, and now GA ist still working.
Also, as a side-effect, my presence is working again after being broke for about 4 weeks now.
It didn’t show my IP-adress anymore, so maybe you can check if your and your wife’s phone are connected and the IPs show up in the Member section.