If you didn’t use to be forwarded to the login page when you try to access your application that means that security was probably turned off, and somehow it got turned on now and that’s the reason why you’re forwarded to the login page.
To check that go to Project ‘AppName’ > Security > Security Level > Security Level
Also, I believe the username and password you’re being asked to enter are of the users created in your database, and not the credentials of your Mendix account. You can log in using the credentials of the MxAdmin user that is usually created by default (except in the sandbox). To find out what those credentials are, go to Project ‘AppName’ > Security > Administrator (tab). I think their default is: username: MxAdmin & password: 1
Hope that helps.
The Current migrated version of the application is not logging with the previous version’s credentials . We also tried logging in with MxAdmin . The application is showing the above login page even when the security is turned off. What are we missing here?