This finally worked for me: https://sourceforge.net/p/texstudio/bugs/2190/
1 min Google provides: https://sourceforge.net/p/texstudio/wiki/Compiling/#ubuntu
I just retried, I get the error "Segmentation fault" when texstudio crashes, the Gtk-Message comes without the crash
I just experienced the same behaviour on Fedora 26, package texlive.x86_64 (6:2016-33.20160520.fc26.1) However the last updates I had were Gtk and I get the message; "GtkDialog mapped without a transient parent. This is discouraged." when started from terminal, but this doesn't seem to crash it.
I just experienced the same behaviour on Fedora 26, package texlive.x86_64 (6:2016-33.20160520.fc26.1) However the last updates I had were Gtk and I get the message; GtkDialog mapped without a transient parent. This is discouraged. when started from terminal, but this doesn't seem to crash it.