It is supposed to be the same with the older skin, as nothing has changed regarding the transitions.

Please note, the built-in browser is an old browser, with poor support of modern HTML and CSS standards. Users should never use that, as it gives the impression the generated albums are broken.

OK, thanks Laza.
We can just discard this behavior of the build-in browser of jAlbum.

It's a third-party product, and there doesn't seem to be any development work taking place on it, so an update is unlikely. If you're just using it for a quick layout check, it's mostly reliable (though not entirely - I've seen it mangle some thumbnail layouts). The problem is that users see something wrong, then report it as a skin bug. So, skin developers hate it.

There is a much more full-featured JavaFX browser available, but it's a real browser. That means that it's standards-compliant. But it's also just as large as Chrome. That raises a question - does it make sense to bundle a full browser with jAlbum, when virtually every jAlbum user already has a modern browser on his machine?

I just stick with my default browser (Brave), and hit F9 then F12. That does mean that I sometimes end up with many tabs open in the browser, but that's not really a problem. I could just hit F9, ALT-TAB, F5 (or CTRL-F5, just to be sure).

Yes ... right :-)!