There was no problem with the CES logger registry key, and I couldn't produce to this profile at all using QuickSync or NVENC or even with the CPU by itself. I could produce to the default HEVC 4K 30p profile without any issue, so I extracted those settings and compared them to the new profile the Profile Analyzer had made.
The differences are shown in orange:
As you can see from the notes in red, after a bunch of testing I found that the problem wasn't any of the video settings at all - it was the <Audio SamplesPerSec> setting of 32. If I set that to 16 or lower, the video produces normally, but if it's 17 or higher the error occurs.
I'd like to see if other people get the same Best Matched profile when using the Profile Analyzer on this same clip, and also whether changing <Audio SamplesPerSec> to 1 - 16 allows PD to produce. Both the clip and the original Best Matched profile.ini file are in this OneDrive folder.
YouTube/optodata
DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors
Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°