This unit does not exist in the current reporting tree

Hello:

In Management Reporter 2012 CU13, I'm getting warning messages in the Report Queue Status box saying that "this unit does not exist in the current reporting tree".

That's incorrect.  The unit does exist in the current reporting tree.  And, this warning is specifying every unit of the reporting tree, at that.

Other than by unchecking the "Include missing unit warning" checkbox, how can I prevent this warning from appearing?

Thanks!

John