Have a trouble with "Broom Game" achievement.

Finished Tier1 in Mischief at Mugwarts compain, Broom Game mission
Have a green checkmark opposite the mission icon in "All Objectives" menu.
But don't get the achievement for this one

What can be happened? Can't do the mission Tier 1 again.
Today finished Tier 2 Broom Game (Beat area 650) and still don't have the achieve.
Please help.