Jo visst. alla mappar har bilder med datum.
Bara den senaste mappen 2021 verkar inte räknas med?
Första mappen 2013 och sedan en för varje år, men 2021 kommer inte med i Title page utan den slutar med 2020?
There is no camera date in that original image. jAlbum can not extract information that doesn't exist.
If you are seeing a 2020 date for a folder, that tells me that there is at least one image in that folder that does have a camera date, and jAlbum is detecting it. It is ignoring the other images, which do not have a camera date.
When I use your original image, I get no date range in the folder title at all, as expected.
I think I know what has happened here. Until the latest release, jAlbum would use the last file modification date if there was no camera date recorded. It appears that it stored that information in the .info file for the folder. So, for the folders from 2020 and earlier, it used the file date. But jAlbum no longer does that. If there is no camera date, it does not use the file date. So for the 2021 images, it will not use the file date. For the older folders, that information has already been stored. But if you started out with a new project, using the same images, it would not do that again.
You could add an EXIF camera date to the most recent 2021 image with another application, like EXIF Pilot. Then jAlbum could see it.
(Laza - I believe that getCameraDates(), for extracting the range, no longer uses the file date if there is no camera date, but getCameraDate(), for extracting a single date, still does. But I've lost track. We probably need a method that lets us choose whether to use the fallback or not.)