I can't help but put on my PM hat and say well this is almost certainly a statistical artifact, but they should probably take a closer look at the last software update.
Before we started using it as a pejorative, the point of fire drills was to practice doing something so that when it really matters you don't have to try to improvise a solution on the spot.
There are teachable moments around how long it takes you to verify that this had nothing to do with the software update. And if it turns out to be the software, you're going to feel pretty dumb for sandbagging. And as unlikely as it is, there is a non-zero probability of someone going to jail. So don't just check it, invest in being able to check it.