My PC Client seems to have stopped uploading tracks.

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My PC Client has been stuck with 872 songs left to upload for 4-5 days now with MeCanto running for at least 10 hours a day. The progress bar continues, even the names of the songs that are currently being uploaded seems to change, but it never ends. It's as if it's stuck in some perpetual loop, simply reuploading 10 songs over and over or something. Is this normal? If I keep it running for a few weeks, will it suddenly jump from 872 left to 0 left? Or do I need to fix something?