fab233 thanks fro the informations. I bought a DP2HD4K60H firmware 11.116.055. I have Club3D CAC-1070 (fw 7.99), CAC-1080 (fw 11.116.009) and now a StarTech DP2HD4K60H. The DP2HD4K60H is the 1st one ever to play all resolutions + audio PT for all formats. For both Club3D i used the HDMI 1.4 onboard for audio and DP 1.2 + Adapter for video.
smp i tested the image from today on ASRock B360M + i3-8100 + DP2HD4K60H + AVR X4500H + TV LG E6D and only get a black screen. I did also try only the TV, but smae black screen.
On the screenshots you see what my AVR Info is for the i3-8100 and my Vero 4k+. Tested with Avenger Endgame mkv remuxed myself with makemkv.