A quick post to share that the issue originally shared here Bug: cannot load plugin after upgrading to 2.0.8 is still outstanding in version 2.1. The workaround remains the same: avoid using the VST3 version of the plugin by deleting its files immediately after installation.
Does that mean you can use the VST version of the Plug-in? Just not VST3?
Yes the VST always works, the VST3 most often hangs the loading process and prevents the project from completing loading.