Index: trunk/ppStack/src/ppStackCombineInitial.c
===================================================================
--- trunk/ppStack/src/ppStackCombineInitial.c	(revision 23576)
+++ trunk/ppStack/src/ppStackCombineInitial.c	(revision 23767)
@@ -87,13 +87,4 @@
 #endif
 
-    // Sum covariance matrices
-    for (int i = 0; i < options->num; i++) {
-        if (options->inputMask->data.U8[i]) {
-            psFree(options->covariances->data[i]);
-            options->covariances->data[i] = NULL;
-        }
-    }
-    options->outRO->covariance = psImageCovarianceSum(options->covariances);
-    psFree(options->covariances); options->covariances = NULL;
     psFree(options->matchChi2); options->matchChi2 = NULL;