AutoTune Pro 10 not available as an ARA 2 extension in Cubase 14 Pro

I am trying to use AutoTune Pro 10 as a ARA 2 extension in Cubase 14 Pro. There is a YouTube video where it is being used in Cubase 12: Master VOCAL TUNING with Auto Tune Pro X with ARA2 in CUBASE 12, so it should work. Unfortuately it is not availble as an option when I try to use it as an extension. SpectraLayers and Melodyne are available and work. I can use AutoTune Pro 10 as Effects Insert, so more proof AutoTune is working, just not as an extension. I have updated it to the latest version in AutoTune Central. I also uninstalled and reinstalled it. It shows up in Auto-Tune VST Manager. It is in the right location: C:\Program Files\Common Files\VST3, but it is not listed as an extension in System Component Information. I am at a loss as to why is not working. Any suggestions on getting it working would be appreciated as I haven’t used either Cubase or AutoTune for a long time. Thanks in advance.