Threads Meta API/Auth Callback URLs

What does this error mean? Whats wrong with my Callback Urls? I only want to set these URLs, that I can gain access to some user accounts about this link:

https://threads.net/oauth/authorize
  ?client_id=<THREADS_APP_ID>
  &redirect_uri=<REDIRECT_URI>
  &scope=<SCOPE>
  &response_type=code
  &state=<STATE> // Optional

But I think the REDIRECT_URI must be the same as the other URL that I can't set.

I also tried this with different URLs. For example https://example.com/auth/callback, but still the same error.

When you add the first URL, you must click on the dropdown under the input field to add the URL