On Wednesday the 19th, production wikis were rolled back from 1.34.0-wmf.10 to 1.34.0-wmf.8 due to a critical issue: "T226109 Jobs not being executed on 1.34.0-wmf.10" [1]
It's now Thursday afternoon in the U.S. and we still do not have a fix, nor is there an indication that a fix is imminent. It's not clear which patch caused the issue so that leaves us with no choice but to cancel the train for this week and try again next week. If there are critical fixes that need to be deployed, I can help with that for the remainder of today; there are of course no deployments on Friday.
wikitech-l@lists.wikimedia.org