Index: wflow-py/wflow/wflow_gr4.py
===================================================================
diff -u -r11f8d5cb169091c08cc5b7210e35f2ce7aed5fb3 -rbdd2b962a90dd8a3b47f0a47506c29092438c0c8
--- wflow-py/wflow/wflow_gr4.py	(.../wflow_gr4.py)	(revision 11f8d5cb169091c08cc5b7210e35f2ce7aed5fb3)
+++ wflow-py/wflow/wflow_gr4.py	(.../wflow_gr4.py)	(revision bdd2b962a90dd8a3b47f0a47506c29092438c0c8)
@@ -484,7 +484,7 @@
 
     dynModelFw._runInitial()
     dynModelFw._runResume()
-    dynModelFw._runDynamic(_firstTimeStep,_lastTimeStep)
+    dynModelFw._runDynamic(0,0)
     dynModelFw._runSuspend()
     dynModelFw._wf_shutdown()