Potential difficulties with local files

[Qaos-System]

After using the site for quite some time, it suddenly began to have issues. It now permanently stalls on the "Going through your library, finding the playlists you own and your saved songs…" step. The only thing I can think of that could have caused this is that I recently enabled the "Show audio files from this device" option on our phone and added some of the files to our song library, since the files don't have artists or albums assigned to them which I imagine would cause problems when comparing song data.