UnityEngine.Windows.Speech.DictationRecognizer Exception

Hi there, I recently released an updated for my PC game on Steam with the latest LTS (2018.11).

Over the weekend I've been receiving an alarming amounts of a new Exception to do with UnityEngine.Windows.Speech.DictationRecognizer.

I do not use UnityEngine.Windows.Speech anywhere in my code base at all!

Any ideas why I'm getting this exception? None of my logs have been particularity useful in highlighting the issue.

The last line in my stack trace is always:

UnityEngine.Windows.Speech.DictationRecognizer+DictationResultDelegate.Invoke (System.String text, UnityEngine.Windows.Speech.ConfidenceLevel confidence) (at <00000000000000000000000000000000>:0)