[BUG] Deleting audio files in Wavelab Pro 9.5

I did not react earlier because I was rather busy , but I find quite unacceptable that such an upgrade (WaveLabPro 9.5) crashes every time you want to delete a file within it, i.e. via the window File => info => Delete button
How such a BUG is possible ???
I am using a MacbookPro running High Sierra.
BTW I saw just a few minutes ago an upgrade to Wavelab 9.5 1.5 , I will downlaod it and test the delete function on the spot

AMG