Delete Computer\HKEY_CURRENT_USER\Software\Waves\WaveShell-VST3 and rescan.

When your DAW scans WaveShell1-VST3 10.0-x64.vst3 , it detects all installed Waves V10 plugins that use the VST3 format. You will not see individual .vst3 files for each Waves plugin (e.g., CLA-76.vst3 ); instead, everything lives inside this shell.

C:\Program Files\Common Files\VST3\