Description of problem:
some storage tabs displaying "No items to display "
for example:
if I'm expanding System\Data centers\[dc name]\ and selecting Storage it displays nothing in main tab, but displays all domains in tree,
if I'm selecting [dc name] and Storage tab, also nothing,
but in System \ Strorage tab all domains present,
also in Clusters\[cluster name]\ Storage tab they present.

Reported on users mailing list: http://lists.ovirt.org/pipermail/users/2017-February/079415.html