diff --git a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Core/ContentHandler.inc b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Core/ContentHandler.inc
index 99c52272..101f7856 100644
--- a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Core/ContentHandler.inc
+++ b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Core/ContentHandler.inc
@@ -269,17 +269,46 @@ class ContentHandler {
      * @return array This ContentHandler as an OpenAPI 'content' schema for this MIME type in a given Response object.
      */
     public function to_openapi_schema(Response $response, Endpoint $endpoint): array {
-        # Format the data schema based on the endpoint for successful responses
-        if ($response instanceof Success and $endpoint->many) {
+        # Default to an empty schema in the event we cannot determine the schema
+        $data_schema = [
+            'oneOf' => [['type' => 'array', 'items' => ['type' => 'object']], ['type' => 'object']],
+        ];
+
+        # Ensure the 'id' field is included for success responses on many models without a parent
+        if ($response instanceof Success and $endpoint->model->many and !$endpoint->model->parent_model_class) {
             $data_schema = [
-                'type' => 'array',
-                'items' => ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"],
+                'allOf' => [
+                    ['type' => 'object', 'properties' => ['id' => ['type' => $endpoint->model->id_type]]],
+                    ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"],
+                ],
             ];
-        } elseif ($response instanceof Success and !$endpoint->many) {
+        }
+        # Ensure the 'parent_id' and 'id' fields are included for success responses on many models with a parent
+        elseif ($response instanceof Success and $endpoint->model->many and $endpoint->model->parent_model_class) {
+            $parent_type = $endpoint->model->get_parent_model()->id_type;
+            $data_schema = [
+                'allOf' => [
+                    [
+                        'type' => 'object',
+                        'properties' => [
+                            'parent_id' => ['type' => $parent_type],
+                            'id' => ['type' => $endpoint->model->id_type],
+                        ],
+                    ],
+                    ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"],
+                ],
+            ];
+        }
+        # Do not include any extra fields for non many models
+        elseif ($response instanceof Success and !$endpoint->model->many) {
             $data_schema = ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"];
-        } else {
+        }
+
+        # If this is a many endpoint, nest the data schema in an array
+        if ($response instanceof Success and $endpoint->many) {
             $data_schema = [
-                'oneOf' => [['type' => 'array', 'items' => ['type' => 'object']], ['type' => 'object']],
+                'type' => 'array',
+                'items' => $data_schema,
             ];
         }
 
diff --git a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/NetworkInterface.inc b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/NetworkInterface.inc
index 664fedb3..d375dd9a 100644
--- a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/NetworkInterface.inc
+++ b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/NetworkInterface.inc
@@ -165,7 +165,7 @@ class NetworkInterface extends Model {
         $this->gateway = new ForeignModelField(
             model_name: ['RoutingGateway', 'RoutingGatewayGroup'],
             model_field: 'name',
-            model_query: ['ipprotocol' => 'inet', 'interface' => &$this->id],
+            model_query: ['ipprotocol' => 'inet'],
             allow_null: true,
             conditions: ['typev4' => 'static'],
             help_text: 'Sets the upstream gateway this interface will use. This is only applicable for WAN-type interfaces.',
@@ -313,7 +313,7 @@ class NetworkInterface extends Model {
         $this->gatewayv6 = new ForeignModelField(
             model_name: ['RoutingGateway', 'RoutingGatewayGroup'],
             model_field: 'name',
-            model_query: ['ipprotocol' => 'inet6', 'interface' => &$this->id],
+            model_query: ['ipprotocol' => 'inet6'],
             allow_null: true,
             conditions: ['typev6' => 'staticv6'],
             help_text: 'Sets the upstream IPv6 gateway this interface will use. This is only applicable for WAN-type interfaces.',
diff --git a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/RoutingGatewayGroupPriority.inc b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/RoutingGatewayGroupPriority.inc
index 5bd2bc85..183c3400 100644
--- a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/RoutingGatewayGroupPriority.inc
+++ b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Models/RoutingGatewayGroupPriority.inc
@@ -22,6 +22,7 @@ class RoutingGatewayGroupPriority extends Model {
         $this->parent_model_class = 'RoutingGatewayGroup';
         $this->config_path = 'item';
         $this->subsystem = 'staticroutes';
+        $this->update_strategy = 'replace';
         $this->many = true;
         $this->many_minimum = 1;
 
diff --git a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APICoreContentHandlerTestCase.inc b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APICoreContentHandlerTestCase.inc
index 18c5c920..38701e97 100644
--- a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APICoreContentHandlerTestCase.inc
+++ b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APICoreContentHandlerTestCase.inc
@@ -136,7 +136,17 @@ class APICoreContentHandlerTestCase extends TestCase {
                                 'data' => [
                                     'type' => 'array',
                                     'items' => [
-                                        '$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}",
+                                        'allOf' => [
+                                            [
+                                                'type' => 'object',
+                                                'properties' => [
+                                                    'id' => ['type' => $endpoint->model->id_type],
+                                                ],
+                                            ],
+                                            [
+                                                '$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}",
+                                            ],
+                                        ],
                                     ],
                                 ],
                             ],
@@ -165,7 +175,17 @@ class APICoreContentHandlerTestCase extends TestCase {
                         [
                             'type' => 'object',
                             'properties' => [
-                                'data' => ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"],
+                                'data' => [
+                                    'allOf' => [
+                                        [
+                                            'type' => 'object',
+                                            'properties' => [
+                                                'id' => ['type' => $endpoint->model->id_type],
+                                            ],
+                                        ],
+                                        ['$ref' => "#/components/schemas/{$endpoint->model->get_class_shortname()}"],
+                                    ],
+                                ],
                             ],
                         ],
                     ],
diff --git a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APIModelsRoutingGatewayGroupPriorityTestCase.inc b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APIModelsRoutingGatewayGroupPriorityTestCase.inc
index 9be7fdab..3842b82b 100644
--- a/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APIModelsRoutingGatewayGroupPriorityTestCase.inc
+++ b/pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Tests/APIModelsRoutingGatewayGroupPriorityTestCase.inc
@@ -58,6 +58,13 @@ class APIModelsRoutingGatewayGroupPriorityTestCase extends TestCase {
         $gateway_prio->tier->value = 3;
         $gateway_prio->update();
 
+        # Ensure the priority was actually updated
+        $this->assert_equals(
+            RoutingGatewayGroupPriority::query(parent_id: $gateway_group->id, id: $gateway_prio->id)->first()->tier
+                ->value,
+            3,
+        );
+
         # Delete the gateway group priority object and ensure it was deleted
         $gateway_prio->delete();
         $this->assert_equals(RoutingGatewayGroupPriority::read_all(parent_id: $gateway_group->id)->count(), 1);