This is an odd one.
Every saved activity for a subscriber will rebuild the LifeMap.
In the status page, it’s the “tile delay”. It’s rarely delayed.
It seems like the LifeMap rebuild finishes, but the updated LifeMap is still cached somewhere/somehow. I think it’s internal to Mapbox, and the URL structure I use to force a cache reset isn’t working as expected.
I’ve had this long-running thread in place to try & work through the issue: This is the thread for Advanced LifeMap problems