Index: trunk/ppSub/src/ppSubMatchPSFs.c
===================================================================
--- trunk/ppSub/src/ppSubMatchPSFs.c	(revision 35924)
+++ trunk/ppSub/src/ppSubMatchPSFs.c	(revision 36441)
@@ -156,6 +156,8 @@
     psLogMsg("ppSub", PS_LOG_INFO, "Input FWHM: %f\nReference FWHM: %f\n", inFWHM, refFWHM);
     if (!isfinite(inFWHM) || !isfinite(refFWHM)) {
-        psError(PPSUB_ERR_DATA, false, "Cannot determine FHWM for images, giving up.");
-        return false;
+        psErrorStackPrint(stderr, "Cannot determine FHWM for images, giving up.");
+        int error = psErrorCodeLast(); // Error code
+        ppSubDataQuality(data, error, PPSUB_FILES_ALL);
+        return true;
     }