Seems like there's a shortage of series 2017 FRNs in circulation these days. The pop reports for the high-volume districts (B, F, G, K and L) already report that several hundred million notes (or more) have already been printed and released into circulation.
Something's up, but I don't know what it might be. There have been rumors that Steve Mnuchin's days as Sec'y of the Treasury are numbered and the notes, once found are being hoarded). Who knows, but the absence of these notes in circulation may be an indication of something yet to be defined.