@poisondeathray
Thank you now it works
!!! I had dragged and dropped the exe-file in the wrong place, the old x64 was still there and I mixed them up.
But should it say below input: Stream #0:0 Video: rawvideo (Y3[11][16] / 0x100B3359),
yuv420p16le...?
The encoding section shows
yuv444p10le which is fine I guess ( because FFMPEG cannot encode prores 4444 in higher than 10 bit?)