There was a fix related to Waves plugins being excluded during a scan. It was fixed in the latest build, which has not been released yet, but you might want to try installing since it addresses the problem you are experiencing:
https://dl11.pgmusic.com/support/patch/bb2021_win_update_build835b.exe

You should check if the particular plugin (or WaveShell host plugin) is excluded in the Plugins Settings dialog, and un-exclude it.


Blake

PG Music Inc.