When I put a WAVES 9.92 effect in the insert section of a track it opens and shows the GUI. If I close it and then reopen it the effect is still there but the GUI is black. I then go into my effects drop down and select it again and it opens the GUI with the effect showing. This does not happen with any other plug ins I own. Also the Shift Command clicking e button will not open all the inserts on a track.
I tried reinstalling the plugins. That did not work.
At the bottom of the upper right corner drop down on the GUI select “generic editor”. When you then open and close the GUI it shows the settings.
Not as nice to look at but it works and more usable than a blank black one.
Mac High Sierra.