Apple ProRAW rendering issue

According to dng_validate, the value of DefaultBlackRender is "Long = 1". However, LightRoom, including DNG Profile Editor, doesn't honour this tag and render as DefaultBlackRender = 0, resulting in darker tones. Please use this photo as an example (https://s3.amazonaws.com/files.prod.dpreview.com/sample_galleries/9434362346/8350882581.dng?X-Amz-Expires=3600&response-content-disposition=attachment%3B%20filename%3D%22iphone15pro_main_0215.DNG%22&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAUIXIAMA3N436PSEA/20250930/us-east-1/s3/aws4_request&X-Amz-Date=20250930T072629Z&X-Amz-SignedHeaders=host&X-Amz-Signature=b791151b67f5fbb3e508ede71fef17353c94b956751dfcadda48203296ead122).

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]