Issue with TAdvSmoothPopup and TRzCheckTree

We're seeing an issue that the checked states of individual notes of a TRzCheckTree are lost when it's parent TAdvSmoothPopup is hidden.  We've verified the issue does not occur for TRzCheckTree when it is not parented by a TAdvSmoothPopup.

Any idea why this is happening?  Is there a known workaround?