Migration deemed successful, but the backlog has not populated in the new site.

[lgs-director]

The Migration Dashboard said the project successfully migrated which the project details & other parameters transfered, but the backlog did not populated. Has anyone experience this & how was it fixed.

[Blue Ridge Consultants]

I would suggest taking a look at the filter for your board and see if it was migrated properly.  In some cases, JCMA does not support migrating all filters. 

If the filter is the problem you can take a look at enabling some dark features to attempt to migrate them on your next test (or rebuild it in the cloud of course).

https://confluence.atlassian.com/cloudkb/how-to-migrate-all-boards-and-filters-with-the-jira-cloud-migration-assistant-jcma-1095774091.html