In the main toolbar, where it shows the Scene title, and I mouse over that, it shows a document as having 13 words.
In the status bar, below, it shows 12 words.
I count the scene’s “words” and I find 12.
Here’s a screen shot.
https://drive.google.com/open?id=1WeJBBw5ibooEZV0BiBi-_5ToEFIl-l4D