Cubase 9.0.1 BlackList 64bit PlugIn

The iZotope issue should not be related to this - the black-listed items are usually not plug-ins. You will find two dlls in your VST folder: one is iZotopeplug_name.dll and one iZ*plug_name.dll.

The first file is the valid plug-in’s dll, the second contains files the plug-ins access during operation.