diff --git a/LSL2/STPROC/OBJ_WO_LOG.txt b/LSL2/STPROC/OBJ_WO_LOG.txt
index 89c8339..a9d65ed 100644
--- a/LSL2/STPROC/OBJ_WO_LOG.txt
+++ b/LSL2/STPROC/OBJ_WO_LOG.txt
@@ -1132,8 +1132,9 @@ ReleaseCassettes:
                     
                 END ELSE
                     
-                    IF WOStepRec<WO_STEP_RDS_KEY$,CassNo> EQ '' THEN
-                        WOMatRec = XLATE('WO_MAT',WoNo:'*':CassNo,'','X')
+					WOMatRec   = XLATE('WO_MAT',WoNo:'*':CassNo,'','X')
+					RDSNoCheck = WOMatRec<WO_MAT_RDS_NO$>
+                    If RDSNoCheck EQ '' then 
                         
                         CassLotNo      = WOMatRec<WO_MAT_LOT_NO$>
                         CassWaferQty   = WOMatRec<WO_MAT_WAFER_QTY$>
@@ -1228,7 +1229,7 @@ ReleaseCassettes:
                             END
                             
                         END	;* End of check for GAN reactor
-                    END		;* End of Check for existing RDS on this WO_Step*CassetteNo 
+                    END		;* End of Check for existing RDS
                 END		;* End of check for EpiPRO reactor type
             NEXT N
         NEXT WOStep