On The Standalone works but on the client it doesn’t
this is on standalone and it works
All the mining logic needs to be run on the server (Auth Proxy).
Client inputs Mine Action,: Switch has Auth(remote) → starts any local animations → RPC Server.
Server Event [run on server] … do all the mining actions/logic.
Last graph pic (Server Spawn Item)…
Actor spawned needs to have “Replicated” ticked.
Also, You do not need to Cast the output of a Spawned Actor. For validation purposes (did it spawn something?) just use Is Valid on the return, then set your current stack.