We just encountered a file which has Temporary Survey Graphics embedded in it. Their Level shows up as used in the file, but they dod not display nor can they be selected. The real issue is that while they do not show up in any of the Plot previews within a session, they are showing up on the output of Print Organizer - even if the exact same driver is used in the Print Organize as in the live session, they only show up in the plots created in Print Organizer. The also show up in the previews within the Print Organizer.
So, I downloaded the Delete Temporary Graphics tool but it refuses to run since I do not have MicroStation, only Power InRoads and Power Survey.
This needs to be resolved properly for reasonably current versions of the product so the utility is not needed, but when it is needed, it needs to run with any Power Product, too.