@ DEDRICK Thanks for the explanation , any tip about my last problem ? how to replicate the movement for a child blueprint as i tried to convert them both to a StaticMeshActor and hope may be it will solve the prob but still the child blueprint’s movement not replicating .
edit: i fixed it by replacing child actor by spawn actor instead , and now the movement can be replicated , but more than 20 actor the client get very shutter which i don’t know why as the bandwidth as peer my check is less than 10 kb .any tips here ?