If there was a problem with my backups, why didn’t it say so? “TimeMachine completed a verification” suggests to me that it’s verified the data, and it’s done with that task, not that the task failed. There’s no “for more information, click here”. Nothing. Just a “you need new backups, and we’re going to ignore the old ones you’d been using”. So glad I use my own backup scripts as well as TimeMachine.