Index: /issm/trunk-jpl/src/m/classes/outputdefinition.js
===================================================================
--- /issm/trunk-jpl/src/m/classes/outputdefinition.js	(revision 20296)
+++ /issm/trunk-jpl/src/m/classes/outputdefinition.js	(revision 20297)
@@ -37,4 +37,5 @@
 		}
 		enums=ArrayUnique(enums);
+		if (enums.length==0){ enums=NaN; }
 		WriteData(fid,'data',enums,'enum',OutputdefinitionListEnum(),'format','DoubleMat','mattype',1);
 		}//}}}
Index: /issm/trunk-jpl/src/m/classes/qmu.js
===================================================================
--- /issm/trunk-jpl/src/m/classes/qmu.js	(revision 20296)
+++ /issm/trunk-jpl/src/m/classes/qmu.js	(revision 20297)
@@ -103,18 +103,19 @@
 			WriteData(fid,'object',this,'fieldname','isdakota','format','Boolean');
 			if (!this.isdakota){
-				WriteData(fid,'data',false,'enum',QmuMassFluxSegmentsPresentEnum(),'format','Boolean');
-				return; 
+				WriteData(fid,'data',0,'enum',QmuMassFluxSegmentsPresentEnum(),'format','Boolean');
 			}
-			WriteData(fid,'object',this,'fieldname','partition','format','DoubleMat','mattype',2);
-			WriteData(fid,'object',this,'fieldname','numberofpartitions','format','Integer');
-			WriteData(fid,'object',this,'fieldname','numberofresponses','format','Integer');
-			WriteData(fid,'object',this,'fieldname','variabledescriptors','format','StringArray');
-			WriteData(fid,'object',this,'fieldname','responsedescriptors','format','StringArray');
-			if (this.mass_flux_segments.length){
-				WriteData(fid,'data',this.mass_flux_segments,'enum',MassFluxSegmentsEnum(),'format','MatArray');
-				flag=true; 
+			else{
+				WriteData(fid,'object',this,'fieldname','partition','format','DoubleMat','mattype',2);
+				WriteData(fid,'object',this,'fieldname','numberofpartitions','format','Integer');
+				WriteData(fid,'object',this,'fieldname','numberofresponses','format','Integer');
+				WriteData(fid,'object',this,'fieldname','variabledescriptors','format','StringArray');
+				WriteData(fid,'object',this,'fieldname','responsedescriptors','format','StringArray');
+				if (this.mass_flux_segments.length){
+					WriteData(fid,'data',this.mass_flux_segments,'enum',MassFluxSegmentsEnum(),'format','MatArray');
+					flag=true; 
+				}
+				else flag=false; 
+				WriteData(fid,'data',flag,'enum',QmuMassFluxSegmentsPresentEnum(),'format','Boolean');
 			}
-			else flag=false; 
-			WriteData(fid,'data',flag,'enum',QmuMassFluxSegmentsPresentEnum(),'format','Boolean');
 		}//}}}
 		this.fix=function() { //{{{