diff --git a/code/game/turfs/turf_changing.dm b/code/game/turfs/turf_changing.dm
index e826867ab7..85292aa2b3 100644
--- a/code/game/turfs/turf_changing.dm
+++ b/code/game/turfs/turf_changing.dm
@@ -59,6 +59,7 @@
 		if(S.zone) S.zone.rebuild()
 
 	cut_overlays(TRUE)
+	RemoveElement(/datum/element/turf_z_transparency)
 
 	if(ispath(N, /turf/simulated/floor))
 		var/turf/simulated/W = new N( locate(src.x, src.y, src.z) )
diff --git a/code/modules/maps/tg/reader.dm b/code/modules/maps/tg/reader.dm
index 542a0b9582..bb320e27ae 100644
--- a/code/modules/maps/tg/reader.dm
+++ b/code/modules/maps/tg/reader.dm
@@ -152,7 +152,7 @@ GLOBAL_DATUM_INIT(_preloader, /dmm_suite/preloader, new)
 					if(xcrd > world.maxx)
 						if(cropMap)
 							break
-						else
+						else if(!measureOnly)
 							world.maxx = xcrd
 
 					if(xcrd >= 1)