diff --git a/a1_swap_mod_packer/gui.py b/a1_swap_mod_packer/gui.py
index 76740b1..db839f6 100644
--- a/a1_swap_mod_packer/gui.py
+++ b/a1_swap_mod_packer/gui.py
@@ -1053,7 +1053,8 @@ class MainWindow(QMainWindow):
         path = Path(file_name)
         try:
             summary = read_3mf_summary(path)
-        except Exception:
+        except Exception as exc:
+            QMessageBox.warning(self, t("gui.dialog.warning.title"), t("gui.log.skipped_file", path=path.name, reason=str(exc)))
             return False
         row = self.table.rowCount()
         self._updating_table = True