HdyDialog seems to cause crashes

I am not sure it's because of HdyDialog, but it's pretty ligkely.
Capture_d_écran_vidéo_de_16-01-2019_19_04_41
Output:
(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.624: gtk_header_bar_pack: assertion 'gtk_widget_get_parent (widget) == NULL' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.625: gtk_container_foreach: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_container_get_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: gtk_container_set_border_width: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_container_set_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_box_get_spacing_set: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: gtk_box_set_spacing: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_box_set_spacing_set: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: gtk_button_box_get_layout: assertion 'GTK_IS_BUTTON_BOX (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: gtk_box_set_spacing: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_container_get_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: gtk_container_set_border_width: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.654: _gtk_container_set_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_container_get_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: gtk_container_set_border_width: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_container_set_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_box_get_spacing_set: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: gtk_box_set_spacing: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_box_set_spacing_set: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: gtk_button_box_get_layout: assertion 'GTK_IS_BUTTON_BOX (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: gtk_box_set_spacing: assertion 'GTK_IS_BOX (box)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_container_get_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: gtk_container_set_border_width: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:50.694: _gtk_container_set_border_width_set: assertion 'GTK_IS_CONTAINER (container)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.554: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.554: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.554: gtk_widget_translate_coordinates: assertion 'GTK_IS_WIDGET (dest_widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.666: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.666: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.666: gtk_widget_translate_coordinates: assertion 'GTK_IS_WIDGET (dest_widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.666: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:53.666: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.594: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.594: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.594: gtk_widget_translate_coordinates: assertion 'GTK_IS_WIDGET (dest_widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.739: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.739: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.739: gtk_widget_translate_coordinates: assertion 'GTK_IS_WIDGET (dest_widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.739: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:54.739: gtk_widget_get_window: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:55.624: gtk_widget_get_parent: assertion 'GTK_IS_WIDGET (widget)' failed

(gnome-control-center:20602): Gtk-CRITICAL **: 19:04:55.624: gtk_widget_freeze_child_notify: assertion 'GTK_IS_WIDGET (widget)' failed
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HdyDialog seems to cause crashes
