This is probably not a "bug", and "working as intended", but i'm putting it in here in hopes that maybe it's not actually intended.
furnace attack lights MK on fire, Koros does single target attack on MK (who had like 1/8 health left and would have died at the beginning of the next round), fire is consumed, but MK dodges the attack, so now the fire is gone, and no damage done.
i'm sure it's another one of those order-of-operations things where the burn is consumed before the roll for dodge/hit happens. i'm just questioning the logic of it. if the target dodges the attack, shouldn't the debuff NOT be consumed?