This is what I received in Feb 2012:
Current screenings have been completed for the Initial Interviews of India.
Shall there be a slot available in coming future we will contact you via telephone and email.
Best Regards,
Flight Crew Recruitment
Cathay Pacific Airways
And later during April 2012:
Thank you for your previously submitted on-line application with Cathay Pacific Airways for our Second Officer programmes.
Given this application was submitted some time ago, we ask that if you are still interested in the Second Officer opportunity, to fully complete the attached Flying Experience Requirement form and the Up-date application form.
Kindly complete the attached forms and return by e-mail on or before 12 May, 2012.
Once we have received the completed documents your application will be assessed on interview suitability and competitiveness.
And finally the "Received with Thanks" mail.
Definitely not a SYSTEM ERROR!!!
I'd still try to get in touch with the HR guys in CX for further info.