Custom pages (/signIn) do not work correctly

[TDanyStark]

Environment

"next-auth": "^5.0.0-beta.25",

Reproduction URL

https://github.com/TDanyStark/practice-nextjs/blob/b103cb45cb09d42f04c8c67013e33ebf012d6336/auth.config.ts#L5

Describe the issue

Describe the issue
I followed the next.js guide
https://nextjs.org/learn/dashboard-app/adding-authentication

when I try to access /dashboard the middleware redirects to
https://practice-nextjs-three-ruddy.vercel.app/login?callbackUrl=https%3A%2F%2Fpractice-nextjs-three-ruddy.vercel.app%2Fdashboard
for now, the expected behavior

then I login with email and password (credentials) my app redirects to the view /dashboard, However, I still see in the URL
https://practice-nextjs-three-ruddy.vercel.app/login?callbackUrl=https%3A%2F%2Fpractice-nextjs-three-ruddy.vercel.app%2Fdashboard

How to reproduce

1.try to access to the protected route
https://practice-nextjs-three-ruddy.vercel.app/dashboard

2.Login with
Email: [email protected]
Password: 123456

3.See the view /dashboard, and the URL /login?callbackUrl=https%3A%2F%2Fpractice-nextjs-three-ruddy.vercel.app%2Fdashboard ,

4.Try click in the SignOut Button, it don't work, because the URL is not correct

5.If you reload the page, Now, you can see the /dashboard view and the /dashboard url.

6.And, now try click the SignOut Button, now it works

Expected behavior

When I login, the URL must change to the correct URL in this example /dashboard