Hello,
I have been using digiKam (flatpak) for a long time and it has always worked without any problems.
Now when I start digiKam (flatpak run org.kde.digikam) the welcome window appears normally and then nothing more. 
The app is shown as running and can also be closed manually.
Trying to uninstall digiKam and reinstalling it completely did not change anything.
I use it under ubuntu 24.04, it has always run flawlessly so far, suddenly these problems.
I don’t know how to help myself and would be very grateful for any helpful advice.
Thanks in advance for any help. Alex