Your final sentence is confusing. Isn’t this a bug? Even if I put the Projectile Movement component in my “Item” blueprint and remove the Projectile Movement component from my Bomb blueprint in the following hierarchy Actor ← Item ← Bomb, the sphere component of the Bomb blueprint still doesn’t get affected by the Projectile Movement component inherited from the Item BP. I am not sure what other parent you are referring to. In either situation you describe it does not work, unless I am missing something… Have you tried what I described in one of my comments and confirm that it works?