I have manually added an AWS Cognito user to my application's user pool via the AWS management console. The required user pool credentials have been confirmed for this user. I am setting up an auth guard to control access to the routes. Whenever I use the Auth.signIn() function, the promise resolves successfully, however, when calling Auth.currentAuthenticatedUser() after signing in, the promise within the canActivate() function returns an error message "not authenticated". I have read GitHub issues on cookieStorage causing issues with this, but do not have this configured.

sign-in.component.ts

signIn(username, password) {

    return new Promise(() => {
        Auth
            .signIn(username, password)
            .then(() => {
                this.router.navigate(['main/dashboard']); // navigates to main/dashboard as expected
            })
            .catch(err => {
                this.authenticationError = err.message;
            })
    });
}

auth.guard.ts

canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
    return Auth
               .currentAuthenticatedUser()
               .then(() => { 
                   return true; 
               })
               .catch((err) => { 
                   this.router.navigate(['signin']);
                   console.log(err) // "not authenticated"
                   return false;
               });
}