I've had the following email from CTC this afternoon which probably explains it:
Thank you for submitting an online application to join Flybe
Due to the popularity of this campaign, we have made necessary improvements to enhance the application process.
We have added some additional fields to the online form and kindly request that you log back into your application and complete the new sections at your earliest convenience.
You can access your application by clicking on the link Flybe Application Form
You may notice that you are no longer able to see the essay style questions and answers that you previously completed. Please be assured that we have still hold the records of your answers internally.
Upon accessing your application, please click on the ‘Personal Details’ section completing the notice period at the bottom followed by ‘continue’. Please ‘continue’ through all of the sections completing any additional parts and submit.
Please note we will not be able to review your application further until all the additional fields have been completed.
The deadline to complete the additional information is Friday 22nd April 2016.
We greatly appreciated your co-operation.
We would like to wish you every success with your application.
Kind regards
CTC Aviation Selection Team
Make of that what you will! Probably no more than a request for more detailed information, but possibly a sign CTC are re-calibrating the BE recruitment criteria, not sure.