View not displaying correctly for all visitors
Okay, this may or may not work...but...lately D7 has a similar issue.

If you select the view, and click the link "settings" under "Query Settings", you can make the view appear by selecting "Disable SQL Rewriting". There is a security risk, and this issue needs to be solved, ex-post-haste, but it works.

This has been an issue with every View I have seen of late, provided all your permissions are legit.