Yeah, it’s tied to the changes in Updates on January 10, 2022 (Release 463)
You can now toggle your LifeMap on any page… but viewing a city page doesn’t load another LifeMap, so you’re just showing/hiding your own LifeMap - even if you’re looking at someone else’s city page
Cleaning up the LifeMap, in all its forms across the entire site, is my main focus for February.