Server-side Dry-run Testing Error

When loading a RPM package dependency into a channel which is then added to
a transaction in an effort to perform a Server-side dry-run test, the
following occurs:

When the "Initiate Transaction" button is clicked to initiate the dry-run
test, Zenworks consistently complains that the RPM is missing even though
that *specific* RPM was in fact previously added as a dependency package to
the channel. Is this a potential bug and if so, can it be fixed with a
update and/or patch to resolve this issue? The specific RPM dependency
packages that Zenworks complains about is Postfix 2.1.5 and GD Graphics
Library 2.0.33.