[LoadUIWeb] Invalid FLEX session

Running against a flex based application, the Blaze DS server logs consistently write Invalid Flex Session(for each user session).  Other logging seems to suggest the test is doing what it's supposed to, I am concerned I'm missing something:  The test is simple:



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In the above test, my only options for dynamic AMF parameters ( extracted from response) is DSID.  I am using real time cookies.  I may be chasing my tail but ideally I would have a session established which is correct in the eyes of the server.  



Anyone with experience testing Flex based apps or with input to this particular issue, I'd appreciate input.



Thanks!