just cast the type

reflex/event.py

@@ -1591,7 +1591,7 @@ def get_handler_args(
 
 
 def fix_events(
-    events: list[IndividualEventType] | None,
+    events: list[EventSpec | EventHandler] | None,
     token: str,
     router_data: dict[str, Any] | None = None,
 ) -> list[Event]:

reflex/state.py

@@ -2432,7 +2432,7 @@ class OnLoadInternalState(State):
         self.is_hydrated = False
         return [
             *fix_events(
-                load_events,
+                cast(list[EventSpec | EventHandler], load_events),
                 self.router.session.client_token,
                 router_data=self.router_data,
             ),