I am also experiencing this problem which is a huge mess and really fuck up my workflow…
I’m on Cubase 9.5.30 on macOS High Sierra 10.13.6
Mediabay is all over the place, not showing anything in order in the File Brower section in Media Bay. Anybody else still experiencing this problem?
In addition to that, after upgrading to Mac + 9.5 (from 9.0), Mediabay is way slower to load than it used to on my old PC. I have a feeling that is an Cubase issue too.