It's only happening on one folder, the others don't seem to do this. The other folders are not populating the jalbum page with thumbnail and theme images either. It's only the first folder and it's sub folders. The sub folders have excluded thumbnails but that seems to work fine.
I've tried deleting them but it generates them again. I've tried excluding them, but then the page generated doesn't have thumbnails for those folders on the index page. I've tried deleting the index.html file as well
I'm assuming it must be a setting somewhere I can't find or perhaps the project is corrupted? I notice also if I use force remake it doesn't remake everything like I'd expect it to, it just wizzes through very quickly, while a full remake should take a minute or more.
Make sure you're not telling jAlbum to process only updated subdirectories:
Also, always use a real browser to do your previewing, not the integrated or windowed browser, and always hit CTRL-F5 when previewing, to clear the cache.
Finally, to repeat something I've said earlier, the skin has absolutely nothing to do with any of this. The jAlbum core handles all matters of what objects to include, what objects to use as thumbnail images, what objects to use as theme images, when to process the images, etc.
