ConstructorHelpers::FObjectFinder causes crash despite called from constructor

I’m trying to load a custom AnimInstance with ConstructorHelpers::FObjectFinder

I’m doing this in the constructor of my c++ class.
But the ConstructorHelpers::FObjectFinder doesn’t think so and throws an exception at the If check where it checks if it’s called from a constructor.

My code:

	ConstructorHelpers::FObjectFinder<UClass> weaponAnimInstance ((TEXT("%s"), *m_AnimInstancePath));

	Animator = weaponAnimInstance.Object;

Can someone tell me why it’s throwing an exception despite being called from a constructor and how to solve this?

What is the value pointed to by m_AnimInstancePath?

You class is really called M4?

m_AninInstancePath holds the value: “/Game/Animations/M4/BP_M4Anim.BP_M4Anim_C”

Yes it is. It represents a rifle