React Signin redirect not happening to custom LoginCallBack

In our app would like to verify the users against application database before we let them access
Application redirect has been configured to /implicit/callback component

And extended builtin LoginCallback component with custom implementation and this component not getting execute on login redirect.

Am I missing something here ?, I have public route /implicit/callback for LoginCallback

Is your application using showSignInToGetTokens or showSignInAndRedirect?

showSignInToGetTokens does not do a redirect so your custom callback would not be used.