If you don’t activate the stats plugin, it doesn’t track anything.
I just discovered that I had a character refer to two small children as boys, at the beginning of a scene. Twenty-five lines later? One of the boys has morphed into a little girl.
So much for me! At least I'm still in the writing/figuring out what's going on stage, rather than discovering this lovely little booboo after the story had escaped into the wild.