All three Phlogiston categories for Q3 had a big drop in task count in Phlogiston reports in the last week or two, without any corresponding change in Phabricator to cause it.
Looks like some combination of two issues: changes to titles in Phabricator or in the recat file (which changed today), and historical artifacts from data regeneration (there were lots of doubles in the database for some reason). A clean run with fresh data and files has fixed all issues on dev, and matches a manual count for all three categories.
I think it's fine? Honestly, I have a hard time remembering what the issue looked like. There is also a problem with text displaying, after "These charts include data from the following Phabricator projects, in this order:" but it's probably unrelated.