You need to go through 3 points within 10 mins after you start a quest. If you don't finish the quest in time, drop it, restart the game and take quest again.
If you still have time but can't get the point counted, it means you are not at the exact point. Follow the in-game directions. Even if you are on "0" point, pay attention to up and down arrow mark, as you may need to move a bit higher or lower from th place.
There is no bug in the quest, you are just not at the exact point.