One problem – Mini DAYZ: Zombie Survival Review

I love the game it's great. Lots of guns, great graphics and fun but challenging gameplay. However, with the new update when using the joystick or dragging supplies to different slots, the game screen slides up and down revealing black lines, almost like when you scroll past the end of the website. The touch controls are fine but the joystick controls are almost unplayable. Please fix.
Review by saltylightning on Mini DAYZ: Zombie Survival.