@matigo I don't think there were any reposts today.
It's weird. It often seems to happen around the same time of day and then resolve itself with time.
I want to try "strafing" it with since UNIX times fifteen minutes apart to see if some particular value is an issue, but I doubt it; my bet is on some time zone issue, like a double shift or something. I'd need to have a diagnostic tool all ready to run when it goes weird, though.