Index: /issm/trunk-jpl/src/m/classes/prognostic.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/prognostic.py	(revision 13468)
+++ /issm/trunk-jpl/src/m/classes/prognostic.py	(revision 13469)
@@ -69,5 +69,6 @@
 		md = checkfield(md,'prognostic.stabilization','values',[0,1,2,3])
 		md = checkfield(md,'prognostic.min_thickness','>',0)
-		md = checkfield(md,'prognostic.requested_outputs','size',[float('NaN'),1])
+		if not md.prognostic.requested_outputs:
+			md = checkfield(md,'prognostic.requested_outputs','size',[float('NaN'),1])
 
 		return md