diff --git a/src/sunstone/public/app/tabs/oneflow-templates-tab/form-panels/instantiate.js b/src/sunstone/public/app/tabs/oneflow-templates-tab/form-panels/instantiate.js
index 4deba9dce6..704152b89b 100644
--- a/src/sunstone/public/app/tabs/oneflow-templates-tab/form-panels/instantiate.js
+++ b/src/sunstone/public/app/tabs/oneflow-templates-tab/form-panels/instantiate.js
@@ -289,26 +289,32 @@ define(function(require) {
         });
         extra_info.merge_template.custom_attrs_values = $.extend({}, optionalCustomAttrs, extra_info.merge_template.custom_attrs_values);
       }
-      if(that.service_template_json.DOCUMENT.TEMPLATE.BODY.roles){
+      if (that.service_template_json.DOCUMENT.TEMPLATE.BODY.roles) {
         var charters = "";
         var scheduleActionsList = ScheduleActions.retrieve(context, true)
+
         $.each(scheduleActionsList, function(_,sched_action){
           charters += TemplateUtils.templateToString(sched_action);
         });
+
         $.each(that.service_template_json.DOCUMENT.TEMPLATE.BODY.roles, function(index, role){
-          var temp_role = {};
-          $.extend( temp_role, role);
-          vm_template_contents = TemplateUtils.stringToTemplate(role.vm_template_contents);
-          var div_id = "user_input_role_"+index;
-          var tmp_json = {};
-          $.extend( tmp_json, WizardFields.retrieve($("#"+div_id, context)) );
-          $.each(tmp_json, function(key, value){
-            if (Array.isArray(value)){
-              delete vm_template_contents[key];
-              vm_template_contents[key] = value.join(",");
+          var temp_role = $.extend({}, role);
+          var temp_inputs = $.extend({}, WizardFields.retrieve($("#user_input_role_"+index, context)));
+          var vm_template_contents = TemplateUtils.stringToTemplate(role.vm_template_contents);
+
+          $.each(temp_inputs, function(inputName, inputValue) {
+            if (Array.isArray(inputValue)) {
+              delete temp_inputs[inputName];
+              temp_inputs[inputName] = inputValue.join(",");
             }
+
+            // removes duplicated inputs in context
+            delete vm_template_contents[inputName];
           });
+
+          temp_role.user_inputs_values = temp_inputs;
           temp_role.vm_template_contents = TemplateUtils.templateToString(vm_template_contents);
+
           var stringCustomValues = TemplateUtils.templateToString(customAttrsValues);
           if (stringCustomValues) {
             (temp_role.vm_template_contents)
diff --git a/src/sunstone/public/app/tabs/provision-tab.js b/src/sunstone/public/app/tabs/provision-tab.js
index b4aa9ab2b8..1eccb0a194 100644
--- a/src/sunstone/public/app/tabs/provision-tab.js
+++ b/src/sunstone/public/app/tabs/provision-tab.js
@@ -1572,20 +1572,30 @@ define(function(require) {
             var extra_info = ServiceUtils.getExtraInfo(context, Config.isFeatureEnabled("show_vnet_instantiate_flow"));
 
             $(".provision_create_flow_role", context).each(function(){
-              var user_inputs_values = WizardFields.retrieve($(".provision_custom_attributes_selector", $(this)));
-
               var role_template = $(this).data("opennebula");
-
               var cardinality = WizardFields.retrieve( $(".provision_cardinality_selector", $(this)) )["cardinality"];
+              var temp_inputs = WizardFields.retrieve($(".provision_custom_attributes_selector", $(this)));
+              var vm_template_contents = TemplateUtils.stringToTemplate(role_template.vm_template_contents);
+
+              $.each(temp_inputs, function(inputName, inputValue) {
+                if (Array.isArray(inputValue)) {
+                  delete temp_inputs[inputName];
+                  temp_inputs[inputName] = inputValue.join(",");
+                }
+    
+                // removes duplicated inputs in context
+                delete vm_template_contents[inputName];
+              });
 
               extra_info.merge_template.roles.push($.extend(role_template, {
-                "cardinality": cardinality,
-                "user_inputs_values": user_inputs_values
+                cardinality: cardinality,
+                user_inputs_values: temp_inputs,
+                vm_template_contents: TemplateUtils.templateToString(vm_template_contents),
               }));
             });
 
-            if (flow_name){
-              extra_info["merge_template"]["name"] = flow_name;
+            if (flow_name) {
+              extra_info.merge_template.name = flow_name;
             }
 
             Sunstone.runAction("Provision.Flow.instantiate", template_id, extra_info);