Yeah, I had to replace my laptop 
and the transition to the new machine has taken longer than expected. Our household schedule has shifted a bit as well, so all the places I tucked away time to work on CityStrides don’t exist & I need to find new hiding spots. 
I also just needed a bit of a break. Getting this city update code to work properly has been stressful, between the creation of zero-node streets which confuses everyone & how it was overloading servers which caused me to shout expletives at a volume that my cats did not enjoy.
blue nodes mean you’re either not logged in or you’re not running that city - was that activity in a new city for you?
The city update code has flatlined in a very odd way. I have a queue for “slow” jobs (either they take a long time to complete or they tax the database) & this queue is quite limited – other queues are processed by many threads and things scale up/down as load requires, but the slow queue is strictly limited to 5 threads so that I don’t accidentally the whole thing. 
That queue grew to 300k+ jobs and I need to figure out why – I suspect it’s affecting quite a bit of the processing (I think Large queue of Deleted Activities is related). 
So I’m re-assessing that situation…