Pipe fixes

code/ATMOSPHERICS/pipes/cap.dm

@@ -62,6 +62,7 @@
 	overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, "cap" + icon_connect_type)
 
 /obj/machinery/atmospherics/pipe/cap/initialize()
+	..()
 	for(var/obj/machinery/atmospherics/target in get_step(src, dir))
 		if(target.initialize_directions & get_dir(target,src))
 			var/c = check_connect_types(target,src)

code/ATMOSPHERICS/pipes/manifold.dm

@@ -33,6 +33,7 @@
 	icon = null
 	
 /obj/machinery/atmospherics/pipe/manifold/initialize()
+	..()
 	for(var/D in cardinal)
 		if(D == dir)
 			continue

code/ATMOSPHERICS/pipes/manifold4w.dm

@@ -152,6 +152,7 @@
 	update_icon()
 
 /obj/machinery/atmospherics/pipe/manifold4w/initialize()
+	..()
 	for(var/D in cardinal)
 		for(var/obj/machinery/atmospherics/target in get_step(src, D))
 			if(target.initialize_directions & get_dir(target,src))

code/ATMOSPHERICS/pipes/simple/pipe_simple.dm

@@ -44,6 +44,7 @@
 			initialize_directions = SOUTH|WEST
 		
 /obj/machinery/atmospherics/pipe/simple/initialize()
+	..()
 	normalize_dir()
 	var/N = 2
 	for(var/D in cardinal)