Hi Chris,
I believe this is a MIKE 11 issue, and you should probably try to post it on the MIKE 11 forum. I don't have the answer to your question, but if you don't get any reply to this very specific questions, you could also try to contact mikebydhi@dhigroup.com as they could forward you to one of the developers who would know the answer to your question.
If you get an answer then please copy the answer into this post. :-)
Best regards
Oluf (DHI)