RPC calls wrong inherited script

Hello folks

On my gameobject I have a few scripts that represents a behaviour. Say Behaviour_A and Behaviour_B.
Both of them inherits from the same abstract parent (call it Behaviour).

In my abstract parent I define an RPC as follow:

Code (CSharp):

1.     [ClientRpc]
2.     protected void RpcStart(string behaviourName)
3.     {
4.         Debug.Log("RpcStart " + behaviourName+ "    in Behaviour: " + ToString());
5.     }

Now, the problem is when that RPC is invoked for Behaviour B, it's always Behaviour A that receives it.

Example of the log output:

Why is that happening? Is it due to the fact that a ClientRPC function creates a unique ID and it associates with the first script it finds? If so, any suggestions on how I could handle this differently.

The goal I have in mind, is when the Server starts a Behaviour, it then do an RPC to the said behaviour on the clients that can do something custom (mainly minor things. Going SyncVar is not an option).

Thank you

 

Checkout my post. I'm facing a simular issue. I have read the RPC code. The reflection it uses and the method to find the correct object is weird. Maybe my spreadsheet will help you, is way down my thread.
https://forum.unity3d.com/threads/unet-ids-failing-to-match-on-network-session.459070/