imsmanifest xml not creating for AICC

Not sure what I'm doing wrong.  I've filled all the fields for the tracking section and published it as AICC, but the imsmanifest is not creating. 

Could it be the server file name field  that I'm doing wrong.  I have left it blank, and other times I have filled it with a random link.  I will be uploading this module to moodle so I'm not what file name to put.

Any ideas?

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