Lifemap shows no streets completed

I’m not sure what’s going on the last two or three days but my ‘Lifemap’ is not showing any streets completed. ‘Profile’ shows all of my runs (nothing missing there) but when I switch to ‘Lifemap’ the map draws, with my location correct, but no actual activity data is drawn.
The above behavior is seen on my W10 desktop using Brave, Firefox and Chrome browsers. Logging out then back in does not fix this issue.
My Google Pixel3 mobile device (running Android 12 beta) and using the Brave browser works fine.
Any ideas?
Thanks so much