I create a job in 6.3.1, with categorization_field_name set to "message", and try to count by mlcategory. When I Validate Job I get the error message in the title. However, I am able to save and run the job. The job looks like this { "job_id": "the-unusual-suspects", "description": "", "group…

Detector field "mlcategory" is not an aggregatable field

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