The last true "normal" board was July 2021 or August 2021, that is where they had the board and assigned dates right away, the Nov 2021 board is where the goals changed but they didn't cut the selection numbers which caused the issue that is ongoing.
Sending to OCS has zero to do with pipeline jam, NRC can only sent to OCS a specified number of each designator based on manning for each year, when the manning numbers for SNA's dropped almost in half for FY22 when the hard goals came out in Nov 2021 NRC had already sent most of the FY 22 SNA goal, the minimal reduction in selection numbers have allowed them to chip away very slowly at those waiting to go to OCS,