SUMMARY STEPS TO REPRODUCE 1. download the official macOS installer package digiKam-8.5.0-Qt5-MacOS-x86_64.pkg 2. install it by jumping through the Apple "install unsigned packages" hoops. 3. locate the freshly installed digikam.app and showfoto.app apps in /Applications/digiKam.org 4. double click on either one of them to launch OBSERVED RESULT Instead of the app launching, an alert panel is shown: The application “Finder” does not have permission to open “(null).” EXPECTED RESULT The app launching…. SOFTWARE/OS VERSIONS macOS: 15.2 Beta (24C5089c) (intel) ADDITIONAL INFORMATION Trying to launch the app manually from the CLI with /Applications/digiKam.org/digikam.app/Contents/MacOS/digikam kind of works, albeit then I get some bogus error message about lack of write permission to ~/Pictures (which in my case is a mount point for a case-sensitive APFS volume, to which I obviously do have write access, as all my other photo apps access it without any issues…), despite the app previously having been given full drive access in Apple’s 'Privacy & Security" settings. I then continued to point the app to ~/Library/Application\ Support/digiKam/ (the last element a folder I created) for the location of the databases, which allowed the app to finally launch. I haven’t been able to use the app yet for anything, but at least I can launch the app from the shell. Even after setup, the app won’t launch by double clicking from the Finder.
Read well the story from bug 496380 and thanks a lots Apple to make a big puzzle with last MacOS version... Gilles Caulier *** This bug has been marked as a duplicate of bug 496380 ***