Going back to reply to a message in my inbox (all), I find that I go from a message from 20 hours ago to a message from 10 days ago, even though I’ve been an active daily user in that period.

What do you think’s going on there?

I mostly run on Voyager but confirmed the issue via web.

Edit: The gap is a little fuzzy on the borders, just now it was 22 hours to 9 days ago. I think it got down to 5 days ago earlier this morning.