Index: trunk/ippTools/src/camtool.c
===================================================================
--- trunk/ippTools/src/camtool.c	(revision 17601)
+++ trunk/ippTools/src/camtool.c	(revision 17609)
@@ -653,5 +653,5 @@
     // we can't start a warp run unlesss tess_id is defined
     if ((pendingRow->end_stage && psStrcasestr(pendingRow->end_stage, "cam"))
-        || pendingRow->tess_id == NULL) {
+        || (pendingRow->tess_id == NULL) || psStrcasestr(pendingRow->tess_id, "NULL")) {
         psFree(row);
         psFree(pendingRow);