Hybrid_x64 doesn't load in GarageBand under macOS High Sierra

When trying to load a project containing Hybrid 3 patches in GarageBand after updating the macOS to High Sierra, I receive this error message in GarageBand:

"Audio Unit plug-in can't be used

The Audio Unit "Hybrid_x64" could not be loaded for your project, and may need to be updated. Contact the manufacturer for an updated version or further assistance."

I uninstalled the existing Hybrid files from Applications, ~/Library/Audio/Plug-Ins/VST and Components folders, emptied the Trash, then reinstalled the Hybrid 3 trial version I just downloaded from the AIR Technology website.

Still get the same error. Is there anything I can do to get this plug-in operating again?

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