Something picking up from under my standing seam roof

Thanks for your post. I have no way of knowing for certain but my guess is that is either a fastener head (perhaps from underlayment) or debris on the roof deck which has been stepped on by someone on the roof, making that impression from the back side. In other words, I suspect it is not something trying to "rise" up through the roof panels. I also suspect it will not get any worse. Again, I have no way of knowing for certain though.