Index: /trunk/ppStack/src/ppStackReadout.c
===================================================================
--- /trunk/ppStack/src/ppStackReadout.c	(revision 14857)
+++ /trunk/ppStack/src/ppStackReadout.c	(revision 14858)
@@ -189,17 +189,14 @@
             } else {
                 if (!pmAstromReadWCS(outFPA, outCell->parent, hdu->header, 1.0)) {
-                    psError(PS_ERR_UNKNOWN, false, "Unable to read WCS astrometry from input FPA.");
-                    psFree(stack);
-                    psFree(outRO);
-                    return false;
-                }
-                if (!outHDU->header) {
-                    outHDU->header = psMetadataAlloc();
-                }
-                if (!pmAstromWriteWCS(outHDU->header, outFPA, outCell->parent, WCS_TOLERANCE)) {
-                    psError(PS_ERR_UNKNOWN, false, "Unable to write WCS astrometry to output FPA.");
-                    psFree(stack);
-                    psFree(outRO);
-                    return false;
+                    psErrorClear();
+                    psWarning("Unable to read WCS astrometry from input FPA.");
+                } else {
+                    if (!outHDU->header) {
+                        outHDU->header = psMetadataAlloc();
+                    }
+                    if (!pmAstromWriteWCS(outHDU->header, outFPA, outCell->parent, WCS_TOLERANCE)) {
+                        psErrorClear();
+                        psWarning("Unable to write WCS astrometry to output FPA.");
+                    }
                 }
             }