yea, this is a known bug. I can even explain why it happens.
you probably followed the link from the game page. When that happens it puts the text in that you see at the top of the game page.
However, if a game was renamed, this is a different name than what the sales are linked to in the DB. Sadly we use names for the sales links rather than the id of the game.
A lot of bugs were fixed in 2.0, and I'm hoping this is one of them, but I haven't tested it out yet.








