In the third person character I spawn the inventory on EventBeginPlay and the return value I set to the InventoryRef in my Char Blueprint. In my Controller on EventBeginPlay I cast to my Char get the Ref and set it to the ref in my Controller. Like this it doesnt work. It works when I directly cast to my char in the function and get the ref. The same Error appears.
The update function I call in my Inventory on EventBeginPlay (When in my Char the Inventory is spawned.
But when I call the function on EventBeginPlay in my Levelblueprint it works hm