Mongol Khan Attack Speed Arrow Hotkey stuck on 'Q'

In the Season 2 patch, when using fully remappable hotkeys, the Khan attack speed arrow cannot be remapped. Note in the pictures below, I currently have it set to ‘W’, but it remains set to ‘Q’. I confirmed this is not a visual bug. Pressing ‘W’ does not activate the arrow.


Thanks @Player936319171! Fix coming for this one.