that’s seems totally expectable.
i can’t really explain in short with my limited time.
i’m not sure disabling replication is the best solution.
i can’t recall if attaching to an actor is replicated or not. but i think it is.
anyway what i usually do is replicate the hand positions myself.
i don’t think attaching is necessary.
i think you’d need to fix your logic for spawing and attaching.
can you please share more of your code?