Not a misproduction, just an error. Not really worth more than the actual t-hunt. Some people collect errors. Still pretty cool though. The 2017 Soplowed mainline has the thunt symbol on one side of it. The true thunt of it is blue.
Btw, they came out with TWO different Vipers for this. This is a legit treasure hunt, and so is the white one everyone keeps mentioning. —coming from HWTreasure.com