Oversize tier


I recently removed a few listings that for some reason showed “oversize”.
As of now, when I click on “inventory” then “manage seller fullfiled prime”, I can see that all my listings show “Standard size”, however, when I go to SFP performance reports, some of the listings show that they got detail page views under the “oversize” tier, even though they show “standrad size” in my inventory.
I modified all my listings and removed the package dimensions under “more details”, but I still experience problems.
I don’t want any of my items to show oversize.
Please help!
Thank you!