03-02-2016, 09:02 AM
The red tiles are the Danger Zone of a max range Explosion. The targetting circle is a max range Explosion's actual area of effect.
What seems to be happening here is that the Danger Zone doesn't account for the fact it's a 6 range circle, and not just 6 range.
UPDATE: Another issue with Danger Zone-- It doesn't account for Skilled Hunter when displaying a monster's move. (a Sand Shark will display a move of 5, even if it has Skilled Hunter. Which boosts move by 1.)