Saber Interactive has taken to its support Twitter to reveal that the World War Z Aftermath PS5 Cross-Play issues were caused by the fact the Xbox Series X version of the zombie shooter does not have the latest patch for the game.
The Xbox Series X users do not have the latest patch. This may be causing issues when trying to cross-play. We are really sorry for the inconvenience caused. Our team is working on a fix.
World War Z Aftermath was released for PS5 and Xbox Series X/S just recently as a free upgrade for existing owners, although the game was plagued by numerous issues including the upgrade not being free due to a pesky bug and issues related to save data.
World War Z Aftermath is now available for the PS5, and stay tuned for our review here at PSU.
[Source – Saber Interactive]