Hi Walter,
Thank you for getting back to me. As far as I can see, AE doesn’t offer ProRes 422 as an option in the video codec panel. I’m working with AE CC 2018. I’ve tried using Uncompressed YUV 10 bit 4:2:2 which when put through mediainfo seems to match all the criteria requested (still waiting to hear back as to whether the file has gone through or not).