The Dolby Atmos source asset failed file validation by the Dolby Atmos encoder. See the Netflix Atmos Delivery Spec: https://backlothelp.netflix.com/hc/en-us/articles/115001539991
The Dolby Atmos encoder is unable to confirm that the delivered file (ADM BWAV) is a valid Atmos source. This could be a result of file corruption or due to an improper conversion into a format that is not recognized by Dolby tools.
Please confirm your source is free from corruption and ensure that your file has been delivered to spec as a Dolby Atmos BWAV ADM File.