Tts.google_say Does not seem to work in an automation

Hi, I have an automation that calls three services, the third the service being tts.google_say with the following JSON:

  "message": "Setting late night light levels"

When I go to the developer’s call service screen with this JSON, it works fine. When I trigger the automation to test, two other actions occur but tts.google_say does not.

Any idea why it is not occurring?