Problem with networkview script - A gameobject who doesn't own the networkview is writing in the stream?

Hello I'm having a problem, apparently a gameobject is writing in a stream (isWriting in OnSerializeNetworkView function) whose networkview doesn't belong to it. It happens when I connect a third player on the network, and I have no idea why this is happening since in the documentation of the function OnSerializeNetworkView it says that only the owner of the networkview of the object can write in the stream.