I can add to this.
I was playing a file that dolby vision profile 8, eac 5.1, and srt subtitles.
Using the hdmi pass-through option here is what i am seeing,
With subtitles OFF, it will direct stream, but with regular hdr, not dobly vision
With subtitles ON, it will direct play instantly with dobly vision properly working.
In no instances, can i resume play or fast forward or rewind
Can anyone duplicate this?