Mate, I just went around in circles with this one myself!
Copilot was hallucinating responeses based on old documentation. Not that I can find the new documentation, although I have stopped looking because I have what I need. :P
In short, I threw all the settings in there and the only one that seems to matter, as at 18/11/2025 11:22AM AWST: add `EnablePiiLogging: true` in the relevant appsettings.json file.