Cleanup function is not working since version 8.5

In version 9 too. In the folder AUDIO a bunch of audio files that are not used in the project, and the program says that everything is OK. of course I deleted all versions of the projects except the last one, BAK files too, the path point to the right. of course there are no files in the pool of project.

Here is the related issue for 8.5
Looks like we’ll never get any answer about unfortunately…

https://www.steinberg.net/forums/viewtopic.php?f=226&t=102570&p=580336&hilit=cleanup#p563949