Dynamic partner link used from previous invoke fails during invoke with UnknownEndpoint

09:54:08,525 WARN [EndpointFactory] Couldnt create any endpoint for element <?xml version="1.0" encoding="UTF-8"?>
<service-ref xmlns="http://docs.oasis-open.org/wsbpel/2.0/serviceref"><url xmlns="http://ode/bpel/responder.wsdl">http://localhost:8080/dynpartner/DynResponderService</url></service-ref>
09:54:08,526 ERROR [BpelRuntimeContextImpl] Couldn't find endpoint for partner EPR <?xml version="1.0" encoding="UTF-8"?>
<service-ref xmlns="http://docs.oasis-open.org/wsbpel/2.0/serviceref"><url xmlns="http://ode/bpel/responder.wsdl">http://localhost:8080/dynpartner/DynResponderService</url></service-ref>
09:54:08,528 ERROR [INVOKE] Failure during invoke: UnknownEndpoint