Can't get the Legendary Hero medal

I have the full set on and I'm on my Mushroom mount, yet... no medal. The event supposedly goes until March 14th:

[Legends] I'm the Legendary Hero!

February 1 - March 14
Equip the full set of 7 Legendary Maple Armors and use the Orange Mushroom 30-day mount.
The full set contains the following: Legend Maple Beret, Legend Maple Uniform, Legend Maple Glove, Legend Maple Shoes, Legend Maple Cloak, Legend Maple Shoulder, and Legend Maple Buckle.
The Orange Mushroom 30-Day mount can be obtained through the [From Golden Leaves to Mushrooms?] quest.
Reward: The True Legendary Hero Medal (All classes, STR/DEX/INT/LUK +8, MaxHP/MaxMP/ACC/Avoidability +80, In Battle Mode: ATT +2)

and here's proof I have the full set on plus I'm on the mount:



What do?