Even normal pre-CV years Royal Dates were not not consistent and would Flip-Flop. Booked same Cruises every yr, some were out in Nov-Dec others in April-May. Then couple yrs later Release dates would Flip. One was same Repo every yr day released, did it one yr in May, next June, April, Nov, Dec and Jan(just looked) Always trying get same Cabin on B2B is harder when one Cruise is out 5 months later then the other.