Blacklisted 64Bit VSTis?

I understand the 32bit issue but why are Addictive Drums and Guitar Rig 5 (both 64bit) blacklisted now?

Hello SuStudio,
you are on OSX, correct? These plugins seem to be affected by the Objective-C runtime corruption bug in Apples OSX system, see:

https://helpcenter.steinberg.de/hc/en-us/articles/207348390-Plug-in-Sentinel-for-Cubase-9

There you will find all information.