Moderate Jigsaw puzzle didn't disappear [cleared before your bug fix]

IGN: IronShichika

I finished the quest really early into the event, before you guys fixed the issue of the puzzle not leaving once you finish/forfeit.
Now my puzzle piece is in a limbo state where i have no way of getting rid of it.
As I'm sure im not the only one that experienced this problem (i wasn't the first to finish the puzzle), I decided to post this in bugs instead of character issues.

 

Upvote this I have it on most of my chars as wel

 

I also have this problem

IGN: THESPLENDIDx

 

I guess most of people have this question too.

 

Bumping before the update hits to make sure you'll remember to remove this pesky item out of our inventories