This is the Happy Wars Management team.
In the December 15th, 2016 update, the following issue was found on the Xbox 360 version of the game:
The “Forest Spirit Hat” equipment item’s model does not appear.
Equipping the item causes the player character’s head to disappear while it is equipped.
No other aspect of the item has been affected.
This issue will be fixed in the next update.
We apologize for any inconvenience this may have caused.
“Forest Spirit Hat” graphical glitch