Why am I hearing audio while a Zoom Cloud Recording is being trimmed?

[spogash]

This is bizarre.  The Zoom trimming is taking place as the note under the screen has alerted me.  Several minutes later I begin hearing audio from some of the video that is supposed to be deleted. Does this mean that the Trim Instruction isn't taking?  Does it mean something else? I would be happy to receive guidance on this.  Thank you.