iRule not applying to new pool member

We are using the following iRule to pass the client IP address to the server.

 

 

when HTTP_REQUEST {

 

 

HTTP::header insert "WL-Proxy-Client-IP" [IP::remote_addr]

 

}

 

 

 

It works for the existing members in the pool. We added two new members to the pool, and it doesn't work for them. The servers see the F5s address(SNAT), not the clients.

 

 

Any ideas?