I want to use Noise Gate. The Manage Plug-ins screen indicates that Noise Gate is Enabled and that the Path is C:\Program Files (x86)\Audacity\plug-ins\noisegate.ny. (That file is indeed present in that location.) But the Effect Menu does not list NoiseGate. (The same is true of several other enabled plug-ins.) How do I get Noise Gate to show up in the Effect menu?