I just reproduced the issue and this is an application's problem, let me explain it. Once the instance is created, you have the links to access the application and the admin site. If you click on the link to the admin site, WordPress redirects you to a "weird" url
As you can see, you are getting the wp-login.php site with many options after it. If you try to log in using that URL, you get the login page again. However, if you remove all the option and access the wp-login.php page without any options
You can access the admin dashboard without problems
Could you please let us know if that works for you?