TestMesh = ConstructObject(UStaticMeshComponent::StaticClass(), this, “”); if (TestMesh) { TestMesh->RegisterComponent(); TestMesh->AttachTo(GetCapsuleComponent(), NAME_None); TestMesh->SetStaticMesh(Cube); TestMesh->SetRelativeLocation({ 200.f, 0.f, 0.f }); } If I use this code, It will run…

Ah, i got this problem before, you can’t have many component with the same name, you have to assign different name each time you create the component