Unpublish action throws exception

It is possible to reproduce it in segments.
To reproduce:
1)
item = one random Segment under Economic-regions folder

given(item).publishedInclSubFolders();
when(user).unpublishesTheItem();
then(system).throwsException();

2)
given(user).publishesFolderIncludingSubNodes();
when(user).triesToUnPublishRandomSubNodeFromFolder();
then(user).encountersException();

Also its possible in personas apps.
given(user).groupsAllPersonasInAFolder();
given(user).publishesFolderIncludingSubNodes();
when(user).triesToUnPublishRandomSubNodeFromFolder();
then(user).encountersException();