Middleware does not run when concurrentFeatures is enabled

[saurabhguptarock]

What version of Next.js are you using?

12.0.5-canary.5

What version of Node.js are you using?

14.18.1

What browser are you using?

Chrome

What operating system are you using?

macOS

How are you deploying your application?

Vercel

Describe the Bug

Middleware does not run and redirects user.

Expected Behavior

Middleware should redirect to login page

To Reproduce

module.exports = {
  images: {
    deviceSizes: [640],
    domains: ["avatars.dicebear.com"],
    formats: ["image/avif", "image/webp"],
  },
  createRoot: true,
  swcMinify: false,
  experimental: {
    reactRoot: true,
    concurrentFeatures: true,
    serverComponents: true,
  },
};

_middleware.tsx

import type { NextRequest } from "next/server";
import { NextResponse } from "next/server";

export const middleware = (req: NextRequest) => {
  const cookie = req.cookies["auth"];

  if (!cookie) {
    return NextResponse.redirect("/login");
  }
};

[shuding]

Duplicate of #31803, will track there.

[github-actions]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.