I've been trying to use AlbumShaper for managing my digital photo albums, but for a while now I had a problem that I couldn't reorder the photos in it because I couldn't drag-n-drop the photos.

After much trying and playing I found that when I'm working in my normal window-manager (ion2) I can't drag-n-drop, but when I switched to another environment, such as Gnome or KDE, with another window-manager, everything works.

Now I got my albums in order, but I haven't figured out what is the reason for this wierd behaviour.