As stated in my article, the Steam Leaderboards were not working properly. It clearly works in general but would not actually add any entries or record them properly. I don’t know if this issue is selective (meaning it happens to some Steamwork games or gamers), but two clients I worked for during the time I made that tutorial had issues getting the leaderboards to work for their respective games and a quick research on the issue revealed that they were not the only ones, so I had found a workaround I did by modifying it in the engine source code. It’s not entirely reliable though as it does bring some other slight issues or so I’ve heard but it still worked desirably for the two clients.