On the same layer: do you drag them onto each other, or one besides another?
If the former, then it's probably https://bugzilla.gnome.org/show_bug.cgi?id=632414 If the latter, could you provide the gzipped output of PITIVI_DEBUG=*:5 GST_DEBUG=2 /usr/bin/pitivi > debug.log 2>&1 If it's a segfault (I can't really tell because you haven't said so), make sure you have python-dbg python-gtk2-dbg libgtk2.0-0-dbg python-gst0.10-dbg gstreamer0.10-gnonlin-dbg *gstreamer0.10*-dbg libglib2.0-0-dbg python- cairo-dbg ...installed, then run: "gdb python" ...then, at the gdb prompt, type "run /usr/bin/pitivi" Make it crash, then enter: "bt full" Scroll as much as needed, save the output to a text file and and attach it here. ** Bug watch added: GNOME Bug Tracker #632414 https://bugzilla.gnome.org/show_bug.cgi?id=632414 ** Changed in: pitivi (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686851 Title: Two WAV files in the same layer freezes PiTiVi -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs