HELP! Burst arrows do not burst :(

[nicoelperro]

So.. i'm working on a 8.6 OT and i have one problem with burst arrows.
THEY DONT' BURST, this is the script i have for them in burst_arrow.lua

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_BLOCKARMOR, 1)
setCombatParam(combat, COMBAT_PARAM_BLOCKSHIELD, 1)
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_FIREAREA)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_BURSTARROW)
setCombatFormula(combat, COMBAT_FORMULA_SKILL, 1, 0, 1, 0)

local area = createCombatArea({
{1, 1, 1},
{1, 3, 1},
{1, 1, 1}
})

setCombatArea(combat, area)

function onUseWeapon(cid, var)
return doCombat(cid, combat, var)
end



And this is what i have in weapons.xml

<distance id="2546" event="script" value="burst_arrow.lua"/>

They should work, but they don't it just shoots the burst arrow animation but it has no fire damage or fire animation at all..
If someone knows what could i do to fix that i'd appreciate it very much THANKS