Index: trunk/ppStack/src/ppStackCleanup.c
===================================================================
--- trunk/ppStack/src/ppStackCleanup.c	(revision 27402)
+++ trunk/ppStack/src/ppStackCleanup.c	(revision 27427)
@@ -86,4 +86,10 @@
         options->outRO = NULL;
 
+        options->expRO->data_exists = false;
+        options->expRO->parent->data_exists = false;
+        options->expRO->parent->parent->data_exists = false;
+        psFree(options->expRO);
+        options->expRO = NULL;
+
         pmFPAview *view = pmFPAviewAlloc(0);// Pointer into FPA hierarchy
         view->chip = view->cell = 0;        // pmFPAviewFreeData doesn't want to deal with readouts