Waves 14 Tunes Real-Time visible in Artist 12, but not working

I bought Waves 14 Tunes Real-Time last month and installed it this week, but I can’t get it to work. When I add a new vocal track, I can add the plug-in, and I can open/see the GUI of the plug-in, set the parameters etc. I can hear the vocal from the microphone, and the level is correct, and I can hear other effects like Delay, but the vocal isn’t registered in Waves.

If I add a new vocal track, and add the Waves plug-in as a parameter before clicking the OK button, the same thing happens. The plug-in is visible and can be opened, but the sound ‘doesn’t get there’.

What could be the problem/solution?

Have you read the documentation for the plugin?