Metallica high scores recorded as 0?

Finish a Metallica song, click on high scores and next list to get to the global high score list. Top Ten in the World are shown, but then I see the line at the bottom says rank 0 and a score of 0...

Is this just a visual bug and it's recording properly (as there are some scores in there that are being properly recorded), or is this a problem with my connection/installation??