Same result with the official release "openSUSE-Leap-15.0-DVD-x86_64.iso". What I don't understand is, why I don't get any reaction on my report. By the way: when I use the libraries in /lib and /usr/lib of Leap 42.3 instead of those, installed with Leap 15.0, the notes client starts, but really slow. It takes up to 30 minutes to load my notes-databases. This is quite similar to the behaviour within Tumbleweed.