I was refreshing at Melody's to buy ornament boxes and I got the "You've earned the Melody Regular 2015 achievement!" and an Essence of Melody. Glitch, yes?
Yeah, I have the achievement but what's really bizarre is I didn't get the Essence of Melody. Probably a good thing. I have 3 from previous years, but even though it falsely gave me the achievement I didn't get the Essence. What a strange glitch! I hope this is fixed soon. I don't want an achievement I didn't earn yet!

I'm having the same problem as well, unfortunately. I received both the achievement and the Essence of Melody after collecting the ornament box.
Hopefully this will be resolved soon.
Please file a ticket and a UA can remove the achievement and the prize.
Dexter by ❤
I think I forgot to ping everyone x.x please see above
Dexter by ❤
I'm getting a MySql error every time I try to make a ticket. I deleted the Essence but now I'm wondering if I'll get the achievement at the right time . . . I tried to make a ticket 3 times, and got a MySql 3 times. It really doesn't inspire confidence.
Where are you getting the sql? When you hit "Create your ticket"?
Dexter by ❤
Yes, I've filled in the ticket, and hit the "Create your Ticket!" button.
I will see what I can find out about tickets!
Dexter by ❤
Tickets can be submitted now :) However, I have been told that the achievement is fixed now and they will delete any remaining essences that were received today!
Dexter by ❤