Accessed None trying to read property Cast as Animation Blueprint

Blueprint Runtime Error: “Accessed None trying to read property K2_Node_DynamicCast_As_Cutron_Anime_Blue_Redux”. Blueprint: ThirdPersonCharacter Function: Execute Ubergraph ThirdPersonCharacter Graph: EventGraph Node: Set KnifeShotReady?

And it’s probably the former, the reference not being set. I have the CastTo linked to an Event BeginPlay.