Description of problem: RHEL 7.4 kickstart trees are not being pulled down with cdn-sync. Please note that so far, I have tested this with the RHEL 7 Server and Workstation channels from a Satellite 5.8. I am not sure if this is also an issue with other RHEL 7 versions, or with Satellite 5.6/5.7 (although I assume it is).
This issue gets addressed by Bug 1477456. Closing as duplicate. *** This bug has been marked as a duplicate of bug 1477456 ***