In recent years Natalia Andreeva (Playmate January 2020), Chiara Arrighi (Playmate December 2018), Chiara Bianchino (PLaymate December 2017) an Zoi Gorman (Playmate September 2013) did nude shootings before appearing in PB.Most playmates used their "fame" after their shoot to build up an OnlyFans and show what they have shown in PB and earn extra money. Not too good. But by far less then Nastja Hale, who is shooting nudes with everybody and who does explicit posing. PB has always been about girls and women with the dream of getting forward by posing for PB nude. For the first time. And not too many years ago PB didn't choose any model who had done nudes that were published before. And I'm sure it would be no problem to keep at least the main part of that rule (no publishing in other magazines or pay accounts before). That's what "real" PB would be like.
Either Anna Scharl (Playmate October 2007) did nude shootings, not to mention Zora Niemann or Ursula Buchfellner from the 80s. You could easily expand this list. So it's not really unusual.