Criteria for Dolby Vision Profile 8

I’ve got a handful of movies that are DV profile 8 level 6 that don’t play in Dolby Vision but fall back to HDR10. According to MediaInfo the HDR format is the same, so wonder why some do not work and fall back to HDR10, must be some other criteria that is being used? Running latest version of tvOS and Infuse. Extended Dolby Vision is set to auto. Any ideas on where else to look?

Info example below is the same for two files. One triggers DV the other HDR10.

HDR_Format : Dolby Vision / SMPTE ST 2086
HDR_Format/String : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible

A post was merged into an existing topic: Dolby Vision Profile 7 & 8 support (.ts/.mkv files)