Index: /trunk/magic/remove/src/streaksio.c
===================================================================
--- /trunk/magic/remove/src/streaksio.c	(revision 24382)
+++ /trunk/magic/remove/src/streaksio.c	(revision 24383)
@@ -948,4 +948,10 @@
     }
 
+    if (sfiles->outChMask) {
+        if (!swapOutputToInput(sfiles->inChMask, sfiles->outChMask)) {
+            psError(PM_ERR_SYS, false, "failed to swap instances for chip mask.");
+            return false;
+        }
+    }
     if (!swapOutputToInput(sfiles->inImage, sfiles->outImage)) {
         psError(PM_ERR_SYS, false, "failed to swap instances for Image.");