Board Thread:Support Requests - Getting Technical/@comment-24031888-20180902143614/@comment-126761-20180903193309

I'm not sure of the exact mechanic, but I believe it's something along the lines of: "if nothing happens on a wiki on particular day, it won't run the update for that day". (If a wiki hasn't received any edits in a month, the special page data from a month ago would still be just as valid.)