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GetValue for BBKeyType returns nullptr

Hello. I've been working on this for the weekend with little to no success and think I may be missing something very simple. I have a custom BlackboardKeyType and a TArray of objects within that class to store information. I Use a struct to hold the uint8 keys to simplify getting and setting my Blackboard variables.

Here are a few snippets of code

 //Base_AI_Controller.h
 
 struct KeyIDs
 {
     uint8 STATE;
     uint8 PLAYERS;
 };
 
 KeyIDs Keys;

Base_AI_Controller.cpp

 //Base_AI_Controller.cpp
 
 BlackboardComp->InitializeBlackboard(*Char->BotBehavior->BlackboardAsset);
 
 Keys.STATE = BlackboardComp->GetKeyID("State");
 Keys.PLAYERS = BlackboardComp->GetKeyID("Players");
 
 
 //Starts the behavior tree
 BehaviorComp->StartTree(*Char->BotBehavior);

EnemyAgro.h (My custom BlackboardKeyType inheriting from UBlackboardKeyType_Object)

 //EnemyAgro.h
 
 UCLASS()
 class BASIC_API UEnemyAgro : public UBlackboardKeyType_Object
 {
     GENERATED_BODY()
 
 public:
     UEnemyAgro() {}

BTServiceBase.cpp (My main service) The nullptr occurs here

 //BTServiceBase.cpp
 
 void UBTServiceBase::TickNode(UBehaviorTreeComponent & OwnerComp, uint8 * NodeMemory, float DeltaSeconds)
     {
         UBlackboardComponent *BBComp = OwnerComp.GetBlackboardComponent();
     
         AIController = Cast<ABase_AI_Controller>(OwnerComp.GetAIOwner());
     
         if (AIController)
         {
             //This returns a nullptr
             UEnemyAgro *enemyAgros = Cast<UEnemyAgro>(BBComp->GetValue<UBlackboardKeyType_Object>(AIController->Keys.PLAYERS));

I've tested with the State KeyID and that returns a value with no issues

Here is an image of my Blackboard alt text

Thank you in advance for any assistance.

Product Version: UE 4.21
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asked Feb 11 '19 at 08:42 AM in C++ Programming

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Atijaf
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