battery is sucked up even after quit arcane legend since last week's update

[ladymage]

since last week's update, each time after playing arcane legend on my android phone, the battery is sucked up very quick even after I killed the arcane legend.
Before the update, my phone battery can last for days, but now only one day.
The workaround is to reboot my phone after I played arcane legend. Please fix it. Thanks.