If it is just a normal BP actor, you have to drag the actor into the level or spawn it, and you also have to enable input on it with an enable input node or in class defaults of the BP actor, set auto recieve input.
If it is just a normal BP actor, you have to drag the actor into the level or spawn it, and you also have to enable input on it with an enable input node or in class defaults of the BP actor, set auto recieve input.