GetCharacterMovement() returns nullptr

Development Programming & Scripting C++
, , , ,
1

Hello,
I am experiencing a bizarre problem, where GetCharacterMovement() returns a nullptr when called from BeginPlay().
I have a big inheritance tree for my character class:

ACharacter ->AMICharacter->ABaseCharacter->AHumanCharacter.

The character movement component class is changed in AMICharacter via the ObjectInitializer.
It is worth noting that the first custom character movement class has been replaced by a second one. Several blueprints that inherit from AHumanCharacter were created before that replacement, and, as a result, the assets have been corrupted. This was fixed by a simple core class redirect.

Now, the character movement component is clearly present in every instance of my blueprint(s), including placed instances, spawned instances or the instance present in the blueprint editor. Furthermore, the constructor of AHumanCharacter calls GetCharacterMovement(), which does NOT return a nullptr at that point. However, the same function, in the same class, returns a nullptr when called from BeginPlay(). Does anyone have any idea what’s going on and how I can fix this?

2

I am getting this also. I can see that the CharacterMovement gets constructed in Character.cpp
CharacterMovement = CreateDefaultSubobject(ACharacter::CharacterMovementComponentName);

and it is valid after construction, but yes, in BeginPlay somehow it gets nulled, yet if you actually look at the owner of the CharacterMovement (if you kept the pointer) it is pointing to the correct character that was constructed.
Frustrating and baffling. No one seems to have an answer.
Have you resolved this?

3

You corrupted your blueprint. When you change your hierarchy it will corrupt your Blueprint. You can convert it back to how it was and there is a chance it will work, otherwise create a new blueprint and copy over all of your code. Should work