Djay 2 iPad not loading songs!

Hi, I have encountered a problem with Djay 2 on my iPad. I recently bought 10 songs on Traxsource, as I do each month, put them into iTunes on my Mac and uploaded them to iCloud.

They are now available offline on my iPad but for some reason 4 of them are not available in Djay 2. They are not ‘DRM protected’, they are not ‘album only’, but they are greyed out. I have been searching on different threads but have not found an answer yet.

I have the latest update of Djay 2 and the latest operating system on my iPad. Any help will be much appreciated, thanks.