I have a MacBook Pro 15 with TB. The problem is that Siri doesn't hear me when a click the icon in the touch bar. I check my microphone settings and it looks good. I have macOS Mojave 10.14.5.
But when I click on the icon as I say, nothing happens. It doesn't show the small color waves that are observed when Siri is listening to you. I try to restart the computer but doesn't work. Here is a little clip of what happened.