I do have a bunch of this error in my .xsession-errors log
(exe:6655): Gdk-WARNING **: XID collision, trouble ahead
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): Clutter-WARNING **: The actor ‘uiGroup’ is currently inside an allocation cycle; calling clutter_actor_queue_relayout() is not recommended
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(nautilus:3880): Gtk-CRITICAL **: gtk_container_foreach: assertion `GTK_IS_CONTAINER (container)’ failed
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property
(gnome-shell:3860): St-WARNING **: Couldn’t parse family in font property