glade segfaults when opening magicicada files

$ glade data/ui/main.ui

(glade:19391): Gtk-CRITICAL **: gtk_recent_chooser_set_filter: assertion 'GTK_IS_RECENT_FILTER (filter)' failed
GladeUI-Message: No displayable values for property GtkEntry::input-purpose
GladeUI-Message: No displayable values for property GtkEntry::input-hints
GladeUI-Message: No displayable values for property GtkTextView::input-purpose
GladeUI-Message: No displayable values for property GtkTextView::input-hints
GladeUI-Message: 1 missing displayable value for GtkCellRendererAccel::accel-mode

(glade:19391): GladeUI-CRITICAL **: glade_widget_adaptor_get_object_type: assertion 'GLADE_IS_WIDGET_ADAPTOR (adaptor)' failed

(glade:19391): GladeUI-CRITICAL **: glade_widget_set_object: assertion 'new_object == NULL || g_type_is_a (G_OBJECT_TYPE (new_object), glade_widget_adaptor_get_object_type (gwidget->priv->adaptor))' failed

(glade:19391): GladeUI-CRITICAL **: glade_widget_adaptor_create_internal: assertion 'GLADE_IS_WIDGET (parent)' failed

(glade:19391): GladeUI-CRITICAL **: glade_widget_remove_property: assertion 'GLADE_IS_WIDGET (widget)' failed

(glade:19391): GladeUI-CRITICAL **: glade_widget_remove_property: assertion 'GLADE_IS_WIDGET (widget)' failed

(glade:19391): GladeUI-CRITICAL **: glade_widget_remove_property: assertion 'GLADE_IS_WIDGET (widget)' failed

(glade:19391): GladeUI-ERROR **: Unable to get GladeWidget for internal child vbox

«trap» para punto de parada/seguimiento (`core' generado)

--

I'm in Saucy, glade is: 3.14.2-0ubuntu1

BTW, we don't have vboxes (just the name):

$ grep vbox main.ui
    <child internal-child="vbox">
      <object class="GtkBox" id="dialog-vbox1">

Thanks!