Index: trunk/psModules/src/camera/pmFPAWrite.c
===================================================================
--- trunk/psModules/src/camera/pmFPAWrite.c	(revision 10512)
+++ trunk/psModules/src/camera/pmFPAWrite.c	(revision 10526)
@@ -127,5 +127,5 @@
     // Generate the HDU if needed --- this is required after a pmFPACopy, or similar, which does not
     // generate the HDU, but only copies the structure.
-    if (!hdu->blankPHU && !*imageArray && (!pmHDUGenerateForCell(cell) || !*imageArray)) {
+    if (!blank && !hdu->blankPHU && !*imageArray && (!pmHDUGenerateForCell(cell) || !*imageArray)) {
         psError(PS_ERR_UNKNOWN, false, "Unable to generate HDU for cell --- likely programming error.\n");
         return false;
@@ -137,4 +137,5 @@
 
     if (writeBlank || writeImage) {
+
         updateNames(cell->parent->parent, cell->parent, cell);
         pmConceptSource source = PM_CONCEPT_SOURCE_HEADER | PM_CONCEPT_SOURCE_CELLS |
@@ -177,5 +178,6 @@
         // generate the HDU, but only copies the structure.
         if (!blank && !hdu->blankPHU && !*imageArray && (!pmHDUGenerateForChip(chip) || !*imageArray)) {
-            psError(PS_ERR_UNKNOWN, false, "Unable to generate HDU for chip --- likely programming error.\n");
+            psError(PS_ERR_UNKNOWN, false,
+                    "Unable to generate HDU for chip --- likely programming error.\n");
             return false;
         }
@@ -240,5 +242,6 @@
         // generate the HDU, but only copies the structure.
         if (!blank && !hdu->blankPHU && !*imageArray && (!pmHDUGenerateForFPA(fpa) || !*imageArray)) {
-            psError(PS_ERR_UNKNOWN, false, "Unable to generate HDU for FPA --- likely programming error.\n");
+            psError(PS_ERR_UNKNOWN, false,
+                    "Unable to generate HDU for FPA --- likely programming error.\n");
             return false;
         }