It is not unheard of to have single damaged lines/connector-joints within a cable. The question is whether your cable was designed that way or whether it was damaged in a way that made it do this.
It won't be a damaged wire, there's only one set of those, it's the plug lacking connectors or having them not connected
It won't be a damaged wire, there's only one set of those, it's the plug lacking connectors or having them not connected