has appeared to me a couple of years ago, but I can´t recall how to fix is. Maybe I get info here before the Waves support answers.
The offline intalling of the ver. 9 plugins went OK, but the ver 9 plugings show only in one
Waveshell1 9-92 x64 "plugin" in my Live vst folder. OS is Win 10.
If I recall correctly, previous time I had to delete some files in roaming or in some other folder, but as said, can´t remeber what exactly.