WS-RM CreateSequence request lacks WS-Security header

Hi!

I'm trying to use a WCF based service that uses the security mode TransportWithMessageCredential and reliableSession ON, i.e. https for transport privacy and WS-RM, requiring UserName type credentials on message level.

The problem is that I cannot get SoapUI (V5.3.0) to include wsse:Security header data in the initial WS-RM CreateSequence request, so my server denies to process this request and the whole sequence fails. A subsequent request then includes the wsse:Security header just fine, but too late since CreateSequence failed already.

Any hints?

Thanks!