Containers of Zyn's nicotine pouches.Michael M. Santiago/Getty ImagesZyn shortages have been spotted in New York, New Jersey, and Florida.Philip Morris International's CFO acknowledged supply chain issues on a recent company call.Zyn's popularity has surged among white-collar workers, including on Wall Street.Zyn, a popular brand of nicotine pouches, may be harder to find in several states, including New York, New Jersey, and Florida.Some smoke shops in New York said they are out of the pouches, which retail for about $5, and wholesalers in New Jersey and Florida said they've been hard to get, Bloomberg reported.