[blackreign66]

That does not matter. All the mkv bits (which check for the profile) are patched in from externally. FFmpeg does not remove certain features from 4.1 to 4.3.
Other than that: Is there as of now any other devices than the Shield, that is doing DV as half-baked (firmware bug in shield) or even better? Or do we currently discuss a Shield-Only feature here?

Does Plex support "Adjust Refreshrate to match video"? Or is it just running with 60 hz fixed? Means: Is the testing that you guys do comparable?

Plex does have Refreshrate capability but it doesn't seem to work, so it's running at 60 hz fixed. Knowing this now, I decided to switch Kodi into 23.98 refreshrate fixed and remove the advancedsettings.xml. Doing this has allowed the dolby vision mkv movies to play immediately without issue 95% of the time. If I revert back to allowing Kodi to change refreshrate, it fails pretty much 95% of the time.