diff --git a/app/Controllers/Admin/Menu.php b/app/Controllers/Admin/Menu.php
index 73cf7c0..d5be849 100644
--- a/app/Controllers/Admin/Menu.php
+++ b/app/Controllers/Admin/Menu.php
@@ -33,7 +33,10 @@ class Menu extends BaseController
         $requestedMtIdx = (int) ($this->request->getGet('mt_idx') ?? 0);
         $mtIdx = $this->resolveMtIdx($requestedMtIdx, $types);
         $debugMode = $this->request->getGet('debug') === '1';
+        $fallbackApplied = false;
         $list = $mtIdx > 0 ? $this->menuModel->getAllByType($mtIdx, $lgIdx) : [];
+        $currentType = $mtIdx > 0 ? $this->typeModel->find($mtIdx) : null;
+        $currentTypeCode = (string) ($currentType->mt_code ?? '');
 
         // 현재 지자체에 메뉴가 없으면, mt_idx별로 기본 지자체(lg_idx=1)의 메뉴를 한 번 복사한다.
         if ($mtIdx > 0 && empty($list)) {
@@ -41,20 +44,33 @@ class Menu extends BaseController
             $list = $this->menuModel->getAllByType($mtIdx, $lgIdx);
         }
 
+        // 운영 DB 불일치 대응: site 타입인데 mt_idx 매핑이 어긋난 경우(예: menu_type=2, menu는 4 사용)
+        if (empty($list) && $currentTypeCode === 'site' && $mtIdx !== 4) {
+            $fallbackMtIdx = 4;
+            $fallbackList = $this->menuModel->getAllByType($fallbackMtIdx, $lgIdx);
+            if (empty($fallbackList)) {
+                $this->menuModel->copyDefaultsFromLg($fallbackMtIdx, 1, $lgIdx);
+                $fallbackList = $this->menuModel->getAllByType($fallbackMtIdx, $lgIdx);
+            }
+            if (! empty($fallbackList)) {
+                $mtIdx = $fallbackMtIdx;
+                $list = $fallbackList;
+                $fallbackApplied = true;
+            }
+        }
+
         // 트리 순서대로 상위 메뉴 바로 아래에 하위 메뉴가 오도록 평탄화
         if (! empty($list)) {
             $tree = build_menu_tree($list);
             $list = flatten_menu_tree($tree);
         }
 
-        $currentType = $mtIdx > 0 ? $this->typeModel->find($mtIdx) : null;
-
         return view('admin/layout', [
             'title'   => '메뉴 관리',
             'content' => view('admin/menu/index', [
                 'types'      => $types,
                 'mtIdx'      => $mtIdx,
-                'mtCode'     => $currentType->mt_code ?? '',
+                'mtCode'     => $currentTypeCode,
                 'list'       => $list,
                 'levelNames' => config('Roles')->levelNames,
                 'debug_mode' => $debugMode,
@@ -62,8 +78,9 @@ class Menu extends BaseController
                     'lg_idx'           => $lgIdx,
                     'requested_mt_idx' => $requestedMtIdx,
                     'resolved_mt_idx'  => $mtIdx,
-                    'resolved_mt_code' => (string) ($currentType->mt_code ?? ''),
+                    'resolved_mt_code' => $currentTypeCode,
                     'list_count'       => count($list),
+                    'fallback_applied' => $fallbackApplied ? 'Y' : 'N',
                 ],
             ]),
         ]);
diff --git a/app/Views/admin/menu/index.php b/app/Views/admin/menu/index.php
index 253d222..f3fc34e 100644
--- a/app/Views/admin/menu/index.php
+++ b/app/Views/admin/menu/index.php
@@ -53,7 +53,8 @@ $adminMenuListResolveHref = static function (string $rawLink) use ($adminMenusNa
   requested_mt_idx=<?= esc((string) ($debugInfo['requested_mt_idx'] ?? '')) ?>,
   resolved_mt_idx=<?= esc((string) ($debugInfo['resolved_mt_idx'] ?? '')) ?>,
   resolved_mt_code=<?= esc((string) ($debugInfo['resolved_mt_code'] ?? '')) ?>,
-  list_count=<?= esc((string) ($debugInfo['list_count'] ?? '')) ?>
+  list_count=<?= esc((string) ($debugInfo['list_count'] ?? '')) ?>,
+  fallback_applied=<?= esc((string) ($debugInfo['fallback_applied'] ?? 'N')) ?>
 </section>
 <?php endif; ?>