My Nextjs app is based on the TailAdmin template for a Tailwind based admin dashboard. I deployed the basic app to Firebase app hosting, with a very simple config because I use no Firebase resources except this backend, and all looked good. Then I changed the folder structure in public, deleting old images and adding my own, and set the new image urls in the app sidebare and merged to main, causing an automatic deployment on Firebase, but now the images give a 404 on the "live" site in Firebase.

All I could think of checking was that the images made it to the main branch via my PR, and they did. What else can I check?