useSubmission fail to return a response (result) since v0.11.4 about solid-router HOT 2 CLOSED

// app.tsx
// @refresh reload
import { MetaProvider, Title } from "@solidjs/meta";
import { Router } from "@solidjs/router";
import { FileRoutes } from "@solidjs/start";
import { Suspense } from "solid-js";
import "./app.css";

export default function App() {
  return (
    <Router
      root={(props) => (
        <MetaProvider>
          <Title>SolidStart - Basic</Title>
          <Suspense>{props.children}</Suspense>
        </MetaProvider>
      )}
+     singleFlight={false}
    >
      <FileRoutes />
    </Router>
  );
}