The patch with the following fixes is now released:
1. Show full game AppID store page in demo version.
2. Change channel mapping to 2 channels, disabled check for default audio change every 1 second which may cause audio problems on some audio cards.
3. Fixed a bug that game crashes after updating scores of Highway II and return back to Game Modes Select page.
4. Fixed a bug that game display wrong ranking (always S) in Game Modes Select page.
5. Add Leaderboards for DLC courses in 'Game Mode Total'.
6. Issue regarding uploading Medals on Facebook.
7. Crash in Championship III, Big Eater, and Highway Levels while playing the game and/or when trying to retrieve the Leaderboards Information.