could you install https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/2.24.32-4ubuntu4/+build/18229140/+files/libgail18-dbgsym_2.24.32-4ubuntu4_amd64.ddeb and get another backtrace?
you can also try downgrading gtk3 then, the backtrace has more details but the bug still doesn't really make sense the fact that already started program keep working is expected since the library is loaded from disk on start and a change on disk isn't going to replace it until the program exit and starts again -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gtk+2.0 in Ubuntu. https://bugs.launchpad.net/bugs/1962807 Title: segfault in libgtk-x11-2.0.so.0 with several programs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/1962807/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs