LogPredictionKey: Warning: UnAck'd PredictionKey 2532 in DelegateMap while OnRep [3336/0]. This indicates keychains are created w/o being sent to & ack'd by the server. Last ack'd key in that slot was [0/0].

[OddOculus]

This is solved in Unreal 5.4.2 which you can pull right now if you’re building from source. Credit to @CodingJodon for answering this question in the Unreal Source #gameplay-ability-system channel.