This might be the same: https://gitlab.gnome.org/GNOME/mutter/issues/661
** Bug watch added: gitlab.gnome.org/GNOME/mutter/issues #661 https://gitlab.gnome.org/GNOME/mutter/issues/661 ** No longer affects: gnome-shell (Ubuntu Disco) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1834583 Title: GNOME Shell hangs when closing a Java dialog; hung in g_private_get() from thread_memory_from_self() from g_slice_free_chain_with_offset() from g_list_free() from stack_do_window_deletions() from stack_ensure_sorted() from get_default_focus_window() To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1834583/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs