diff --git a/app/tools/cs2_patterns.py b/app/tools/cs2_patterns.py
index 3900825..77cd15f 100644
--- a/app/tools/cs2_patterns.py
+++ b/app/tools/cs2_patterns.py
@@ -407,9 +407,9 @@ class CS2PatternTool(tk.Toplevel):
                 self.fetcher.ensure_data(force_refresh=True)
                 weapons = self.fetcher.list_weapons()
         except Exception as exc:  # noqa: BLE001
-            self.after(0, lambda: self._on_load_failed(exc))
+            self.after(0, lambda err=exc: self._on_load_failed(err))
             return
-        self.after(0, lambda: self._on_data_ready(weapons or []))
+        self.after(0, lambda items=weapons: self._on_data_ready(items or []))
 
     def _on_data_ready(self, weapons: list[str]) -> None:
         if not weapons: