diff --git a/VERSION b/VERSION
index a5f06bca..3b2fa186 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.469
+8.3.470
diff --git a/drc/DRCarray.c b/drc/DRCarray.c
index 662f3f29..cbaaaffb 100644
--- a/drc/DRCarray.c
+++ b/drc/DRCarray.c
@@ -299,6 +299,7 @@ drcArrayYankFunc(use, transform, x, y, yankArea)
     scx.scx_use = use;
     scx.scx_trans = *transform;
     (void) DBCellCopyAllPaint(&scx, &DBAllButSpaceBits, 0, DRCuse);
+    (void) DBFlatCopyMaskHints(&scx, 0, DRCuse);
     return 0;
 }
 
diff --git a/drc/DRCsubcell.c b/drc/DRCsubcell.c
index 0d755c38..a301da4b 100644
--- a/drc/DRCsubcell.c
+++ b/drc/DRCsubcell.c
@@ -882,6 +882,7 @@ DRCInteractionCheck(def, area, erasebox, func, cdarg)
 
 	    (void) DBCellCheckCopyAllPaint(&scx, &DBAllButSpaceBits, 0,
 			DRCuse, func);
+	    (void) DBFlatCopyMaskHints(&scx, 0, DRCuse);
 
 	    (void) DBNewPaintTable(savedPaintTable);
 	    (void) DBNewPaintPlane(savedPaintPlane);
@@ -944,6 +945,7 @@ DRCFlatCheck(use, area)
 	    savedPaintPlane = DBNewPaintPlane(DBPaintPlaneMark);
 
 	    (void) DBCellCopyAllPaint(&scx, &DBAllButSpaceBits, 0, DRCuse);
+	    (void) DBFlatCopyMaskHints(&scx, 0, DRCuse);
 
 	    (void) DBNewPaintTable(savedPaintTable);
 	    (void) DBNewPaintPlane(savedPaintPlane);