Index: trunk/psModules/src/camera/pmFPACopy.c
===================================================================
--- trunk/psModules/src/camera/pmFPACopy.c	(revision 7833)
+++ trunk/psModules/src/camera/pmFPACopy.c	(revision 7834)
@@ -258,5 +258,7 @@
     if (targetHDU && !targetHDU->header) {
         pmHDU *sourceHDU = pmHDUFromCell(source); // The source HDU
-        targetHDU->header = psMetadataCopy(targetHDU->header, sourceHDU->header);
+        if (sourceHDU->header) {
+            targetHDU->header = psMetadataCopy(targetHDU->header, sourceHDU->header);
+        }
     }
     // Copy the PHU over as well, if required