diff --git a/app/Http/Controllers/API/ClusterController.php b/app/Http/Controllers/API/ClusterController.php
index 7f6e07c..5ad6ca7 100644
--- a/app/Http/Controllers/API/ClusterController.php
+++ b/app/Http/Controllers/API/ClusterController.php
@@ -590,6 +590,8 @@ public function action_update(string $project_id, string $cluster_id, Request $r
 
         if ($cluster = Cluster::where('id', $cluster_id)->first()) {
             if (! empty($cluster->template)) {
+                $validationRules = [];
+
                 $cluster->template->fields->each(function (TemplateField $field) use ($cluster, &$validationRules) {
                     if (! $field->set_on_update) {
                         return;
diff --git a/app/Http/Controllers/ClusterController.php b/app/Http/Controllers/ClusterController.php
index a4ffd8a..53ca2c0 100644
--- a/app/Http/Controllers/ClusterController.php
+++ b/app/Http/Controllers/ClusterController.php
@@ -116,6 +116,8 @@ public function action_add(Request $request)
                         ->first()
                 )
             ) {
+                $validationRules = [];
+
                 $template->fields->each(function (TemplateField $field) use ($template, &$validationRules) {
                     if (! $field->set_on_create) {
                         return;
@@ -368,6 +370,8 @@ public function action_update(string $project_id, string $cluster_id, Request $r
 
         if ($cluster = Cluster::where('id', $cluster_id)->first()) {
             if (! empty($cluster->template)) {
+                $validationRules = [];
+
                 $cluster->template->fields->each(function (TemplateField $field) use ($cluster, &$validationRules) {
                     if (! $field->set_on_update) {
                         return;