Multiple instances do not relay

I have 3 instances of discord-irc running concurrently. They are all in one IRC channel and are connected to 3 different Discord servers.

They do not relay between themselves. For instance if something is said in Discord A.. it is shows in IRC.. but is not then repeated in Discord B and C.

Is this expected? or am I missing something? Do others have similar setups?

Thanks.

K.