*UPDATE* 29th August - This fix is currently still running and may take a few hours to complete. Thank you for your patience, and we will keep you updated 

As most of you know, the launch of a new website and App at the end of July caused a multitude of problems, which led us to take the step of ‘rolling back’ to our original website and App on August 15th. While this ensured that all of our customers could once again access their libraries via their accounts on the website, it unfortunately caused a new problem for many of our most loyal customers – the inability to fully access their large libraries via the App.

Since the 15th, with very limited resources at hand, we’ve been investigating ways to help those customers regain full access.  It hasn’t been until now that we’ve had success, which is why there hasn’t been any news to share. 
Our tech team now believe they have a 'behind-the-scenes' fix which will enable large library customers to do a proper sync-up before their device times-out, but it requires us to take the website off-line at 11pm tonight (UK time).  We estimate it will be down for about 10 minutes. 

We ask everyone to avoid refreshing the app immediately. This will help us ensure a smoother experience for all users. Thank you for your understanding and cooperation.