After you clone an Ubuntu instance, you cannot remote desktop connect to the new instance using your login (e.g. “ubuntu”).
When you try to rdp to the instance, you get “xrdp_mm_process_login_response: login failed”.
The password is probably changed
You should ssh into the new instance and change the password. Note that merely doing “sudo passwd” does not work. You need specify the user “sudo passwd <username>”.
The other workaround is to create a new user and grant the user the necessary permissions so you can rdp with that user.