RFE while PD not current

My case is EB2 NIW based I485 (rest of the world) . My priority date is July 5 2022 but EB2 retrogressed to July 1 2022 ( 5 days earlier than my PD). I140 was approved in January, and yesterday my i485 status changed to 'initial RFE'. The case is at NBC. Does this potentially mean my case has been in process and has visa number already assigned ? Or is it that they are only requesting for RFE but won't process there after as the PD is not current. Any thoughts appreciated.