I guess you already know this but i'll say it anyway.
Aasked for another file means you haven't managed your client correctly, he's a full source but your downloading another file from him and you can only ever download one file from one client per client. Switch the a4af for this release or stop the other file you are downloading from it to switch the source to this file. In circumstances like this, its your clients fault for not finding a fullsource, not the lack of a full source.
You need to manage your client correctly
ps. excuse post to say *moved* to correct section