This happens to almost every single (non plastic) deck I've ever owned. I own a regular porper, an Arcane porper, and an E stainless. I've found it doesnt matter what type of deck it is (standard bike, bee, tally, master's, ghost, arcane, artifice, fulton's, etc), or what clip I put them in, it happens after a few days of use, and goes away after about a week and a half of use. I usually only have 1 deck that I carry around with me, and I keep it in the porper clip whenever not in use.
Edit: I almost always keep my hands clean when handling a deck.