Multiplayer acts strange when not using a single prossess

So I’ve been testing multiplayer and when in a standalone non signal process many of the clients replicate events don’t update on the client so if the client spawns an actor he won’t se it but the server will and floating pawn movement doesn’t replicate properly is this what would happen in a packaged game or would it work more like in the editor?

Here’s a video showing the difference UE4 space game project (abandoned) - YouTube