diff --git a/apps/inm/views.py b/apps/inm/views.py
index ebf966e1..b0926bc6 100644
--- a/apps/inm/views.py
+++ b/apps/inm/views.py
@@ -394,8 +394,16 @@ class MIOItemViewSet(CustomListModelMixin, BulkCreateModelMixin, BulkDestroyMode
         return super().list(request, *args, **kwargs)
     
     def perform_create(self, serializer):
-        serializer.validated_data["mio"] = MIOViewSet.lock_and_check_can_update(serializer.validated_data['mio'])
-        return super().perform_create(serializer)
+      if isinstance(serializer.validated_data, list):
+          mio_cache = {}
+          for item in serializer.validated_data:
+              mio = item['mio']
+              if mio.id not in mio_cache:
+                  mio_cache[mio.id] = MIOViewSet.lock_and_check_can_update(mio)
+              item['mio'] = mio_cache[mio.id]
+      else:
+          serializer.validated_data["mio"] = MIOViewSet.lock_and_check_can_update(serializer.validated_data['mio'])
+      return super().perform_create(serializer)
 
     def perform_destroy(self, instance):
         MIOViewSet.lock_and_check_can_update(instance.mio)