Things like logo images that you add aren't really project "settings." They're more in the nature of images that you're adding to a specific project. If you always include a picture of your dog, Sparky, in every album, saving those project settings as the default doesn't include Sparky's picture with it. Logo images are like that.

The only workaround is to duplicate an existing project - right-click the name of the project in the left pane, or click the little down-arrow to the right of its name, and choose Duplicate project - rather than starting a new, empty project, using default settings. But of course, that also means that you'd have to delete the images in the newly-created project and add the new images you want. Probably easier just to add the logo image each time.

Hmmm.... I can't replicate that. If I add a logo image and make the album, the logo appears on the hero image. If I then add a new folder and put some images in it, and make the album, the logo appears on the page for that folder, too.

I've also tried saving, closing jAlbum, launching it again, then adding another folder. Same results.

You're not trying to preview the album with the built-in browser, are you? That one has horrendous caching problems, along with a whole collection of rendering issues. Always preview the results in a real browser. Under Tools, Preferences, Preview:

Well, it wouldn't hurt to reinstall the skin from https://jalbum.net/skins/skin/Story/

Reinstalling the entire app shouldn't be necessary. The only time it really pays to do some cleaning up is when someone's been using jAlbum for many years, and has accumulated all manner of leftover stuff.

I just reinstalled jAlbum, reinserted the skin folder that I saved to disk before I deleteded the program and everything is back to normal