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LM3481: LM3481 isolated flyback stability problem

Part Number: LM3481

I have a multiple output isolated flyback design using the LM3481, based on applications note SNVU111.  I am having difficulty getting the loop to stabilize.  Can someone look at the design an provide assistance?

Please note--when I select the device as LM3481, the website does not allow me to post in the isolated DC/DC forum--it only allows the non-isolated forum.