Uploaded dng, raf or tif photo not showing in web photos app

I upload a photo (dng, raf, tif) either using the web ui or from my phone.
The photo uploads correctly - I can see it in the Folder list.

However they do not show up in the photos app.
How can I fix this?

Nextcloud Hub 3, 25.0.0

Have you tried using the preview generator app?

Yes, ran the preview generator app - and when browsing the file structure I do see previews of dng, raf images. I just don’t see them in the Photos app.

DNG is not supported as linked above. The raw issue mentions this app for raf and tif raw files: