The Stack Exchange Data Explorer is updated every Sunday morning; the first sites are already finished by 3am UTC. However, today this doesn't seem to happen; all I can find is posts from May 30th and older.
Yeah, there probably is an email sent to the SRE mailbox but failure of the SEDE job isn't critical so the on-call SRE won't be notified. We'll have to wait till Monday.
@rene Permissions are fine, it looks like the job just didn't start. It have kicked it off and I'll investigate a little more tomorrow. — Taryn ♦6 mins ago
and here is one for tweeted and Hot posts and the time it took for those events: https://data.stackexchange.com/pets/query/1421899/posts-that-are-tweeted-and-become-hot-and-how-much-minutes-apart