1. What version & build of Windows are you running?
Windows Phone 8
2. What is the make (who made it) & model (if you know it) of the device or devices you are using?
Nokia 920 Lumia Amber updated
3. About how long ago did you start having this problem?
Since game released
4. Have you noticed this problem happening on any other games?
Problem is game specific, so no. I have read of at least a few other people with the same issue however.
5. Describe your problem. Please explain what happens from the time you launch the game until the problem happens.
The game loads fine, and plays perfectly fine, but the achievement for uncovering a tile surrounded by 6 mines (Serious Business) won't unlock. I've uncovered a few 6's and 7's but the achievement simply won't pop. Description reads no replaying same game or custom games, but I've found them in medium and hard games (new, not replay), and it doesn't unlock.