Can you please save the attached file into the Skin directory / lib folder? You can now turn back the *Force JPEG ... * options.

Yes. The core doesn't quite know how to clean things up after a switch like that. If the album isn't huge, and doesn't contain any videos, it's probably easiest to click the little arrow to the right of the project name and choose Delete... Delete local album, then make the album again.

ETA: I posted a bug report about it. Kind of a fringe case, and maybe very difficult to fix, since the core has to be careful about what it deletes.

Thank you for the hints.

I used the image browser XnView and scanned all folders of my album per "Show all files (recursive)" and filtering for PNG. Most I like your hint "Delete local album". I didn't know that there is this save command for a complete clean up.

Now we are back to the first issue - if JPG creation is forced than "new images" doesn't work.

Attached a screenshot of the used path and the Newimages.html. Also I restarted jAlbum before make Album.

You are right, it was the wrong directory. Now I copied it to the right dir and ... it still doesn't work.

I download the script again, saved it to the right dir, restarted jAlbum, delete the local album and create a fresh one - still not working.

I create a small test project and ... it works. So, I decide me to pack my whole project and sent to you per swisstransfer. You should got it now or it's in your email spam folder.

Great, it works here too now! Thank you very much!!!