It appears that the Datadog Integration has stopped injecting the variables into the URL this morning. It was working without change before the sudden failures. Run history shows last success at 11:15am PST, and first failure at 11:29am PST.
Notice the highlighted request URL, that should have the role_id string injected as per the datadog documentation Roles . I have verified with curl that this specific query works with the same dd api and application key on the command line.