Thank you for your reply. I tried all of the above. However my problem was in my functions.php this code was throwing an error so I had to comment it out.
add_action( 'admin_init', 'cm_redirect_users_by_role' );
I think it’s because I’m also using RegistrationMagic Pro plugin (which is amazing) which also can re-direct users and it may be that this was clashing with this code?
But it is solved for now!