Green video when frameserving from Premiere Pro 2023 to FFMpeg

Done with a clean project, i.e. started from scratch, created project, imported just one file, and hit CTRL+M.

I used an input file I had used for testing. FFMpeg software encoded at 400Mbps VBR:

Look at the bitrate, and you’ll see that it’s again super-green.

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.2@High
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 46 s 547 ms
Bit rate : 113 kb/s <===
Maximum bit rate : 800 Mb/s <===
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 (59940/1000) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.000
Stream size : 643 KiB (89%)
Codec configuration box : hvcC