[fritsch]

Here are 15mn worth of sample.
 Video: hevc (Main 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), s16p (default)

http://youplala.net/~nico/kodi18-4khevc1...-HD.MA.mkv [5.1 GB]
It will take another 45mn to upload fully - Now all uploaded.

Thanks for looking at this!

Nico

 I won't be near a VAAPI capable hevc-10 bit computer until end of this week. Perhaps someone reading this thread with Apollo Lake, KabyLake or Coffee Lake could test it for you. I will ask in our team channel if someone with e.g. Android could also test it to see if those artefacts are VAAPI only. In short: don't feel forgotten if you don't get a reply in a timely manner.