Files not being deleted in audio files folder after erasing from trash

Hi guys I upgraded from Nuendo 5 to 11.0.30 and this feature isn’t working as it did in Nuendo 5
when I delete an event from the pool and select mote to trash then erase the file from the trash that should delete the file from my sessions audio files folder, but when I check the file is still there, this is a bug right?

It’s definitely an inconsistency-- happens over here a lot, too.