I ended up moving the HealthAttributeSet from the AbilitySystemComponent class to my Character class and calling CreateDefaultSubobject inside of the Character constructor for the HealthAttributeSet. Now the AttributeSet is not null anymore.
I ended up moving the HealthAttributeSet from the AbilitySystemComponent class to my Character class and calling CreateDefaultSubobject inside of the Character constructor for the HealthAttributeSet. Now the AttributeSet is not null anymore.