Starting yesterday 25 June 2024, metadata for some videos retrieved via https://developers.google.com/youtube/v3/docs/videos/list do not include a contentDetails.duration field.
Trying to access an expected contentDetails.duration while parsing data from this endpoint results in key errors due to some entities not including this field.
Previously, all video metadata returned from the endpoint contained this field.
Is this an undocumented intended change, or a bug?