diff --git a/shopdb/plugins/__init__.py b/shopdb/plugins/__init__.py
index cf432c7..9b1d74e 100644
--- a/shopdb/plugins/__init__.py
+++ b/shopdb/plugins/__init__.py
@@ -257,11 +257,16 @@ class PluginManager:
 
         self.registry.enable(name)
 
-        # Load the plugin
-        plugin = self.loader.load_plugin(name, self._app, self._db)
-        if plugin:
-            self._register_plugin_components(plugin)
-            plugin.on_enable(self._app)
+        # Fire the on_enable hook best-effort. Do NOT register the blueprint
+        # here: Flask forbids register_blueprint after the first request, so
+        # routes/nav for a re-enabled plugin take effect on the next restart
+        # (symmetric with disable).
+        try:
+            plugin = self.loader.load_plugin(name, self._app, self._db)
+            if plugin:
+                plugin.on_enable(self._app)
+        except Exception:
+            logger.exception(f"on_enable hook failed for plugin {name}")
 
         logger.info(f"Enabled plugin: {name}")
         return True