Similar problem, and I've searched "everywhere" for the answer.
When shooting in ProRaw on native camera or with Halide, and even after choosing "Use Raw as Original" and saving to RAW on Halide, the photo only loads as a jpeg. And even from my RAW album. I see only the jpeg extension, and the image looks bright and processed like a jpeg.
If, from the Photos app, I choose Edit with: Affinity, it will open as a TIFF, and not in the Develop Persona.
And shouldn't it load directly into the Develop Persona if it's a RAW image?
Even if photo Info says DNG, the above still happens. I can never get an image to open into the Develop Persona automatically.
I'm sure there's a simple explanation/solution.
Please enlighten me (before I lose my mind--so please hurry).
Thanks, Jon
iPhone 12 Pro Max to a fully up-to-date iMac.