There's no difference in the knob stickers. Some have the little silver sticker shown, some have a larger plastic sticker -- not painted.
There are a couple runs that had this top layer issue and demarini is aware of this. If you want to return it they will give you a new returnable bat back.
As others have stated, this has happened to theirs but they've put hundreds of swings on it and nothing has happened, except missiles lol.
If you think your league or any ump will have a problem with this then send her back, otherwise keep swinging bro.