Index: trunk/stac/src/combine.c
===================================================================
--- trunk/stac/src/combine.c	(revision 6771)
+++ trunk/stac/src/combine.c	(revision 6887)
@@ -25,4 +25,5 @@
     // Make fake errors
     psArray *errors = psArrayAlloc(images->n);
+    errors->n = images->n;
     for (int i = 0; i < images->n; i++) {
         psImage *image = images->data[i];
@@ -44,4 +45,6 @@
     psVector *saturated = psVectorAlloc(images->n, PS_TYPE_F32); // Saturation limits
     psVector *bad = psVectorAlloc(images->n, PS_TYPE_F32); // Bad limits
+    saturated->n = images->n;
+    bad->n = images->n;
     for (int i = 0; i < images->n; i++) {
         saturated->data.F32[i] = (config->saturated - offsets->data.F32[i]) / scales->data.F32[i];