In the stock email app, I've suddenly had old emails showing up for no reason. I haven't changed any settings or linked my account to anything new.
Screenshot (click image for larger variant)
As the picture shows, there's emails from today and then there's a header that says "older" and then emails from 2011.
I've cleared the data in app info already and then signed back in and the same problem persists. I've tried simply deleted the header "older" and it comes back.