There does seem to be an ongoing issue for just a few users at the moment that we’re looking into. We haven’t yet been able to reproduce it ourselves, but rest assured though we are hunting this at the moment! And the dev team will work it out.
@sonofconan do you know if there is any update on this as yet?
For the moment though, maybe consider trying the Online Player instead. With the Online Player, you do not need to download soundsets, so you will be able to access all of the content
Check out this video HERE, For how to run both the Online Player AND a browser to control it at the same time, which makes running it on an iPad or tablet much easier
Might this work for you?
I’ve also given your account a reset to see if that helps too. You might also want to try THIS device in a different network too, just in case, your network is restricting bandwidth.