Bug in use item in script ?

[aigleborgne]

Hello,

I'm having trouble in using "useitem" in my script:

IF
   GlobalTimerExpired("sanctuary","LOCALS")
   GlobalTimerExpired("castnattack","LOCALS")
   HasItemEquiped("_WAND11",Myself) // Wand of the Heavens
   CheckStatLT(LastSeenBy(Myself),40,RESISTFIRE)
   Range(LastSeenBy(Myself),100)
   See(LastSeenBy(Myself))
THEN
   RESPONSE #100
      ReallyForceSpell(LastSeenBy(Myself),CLERIC_FLAME_STRIKE)
      SetGlobalTimer("castnattack","LOCALS",6)
      DisplayStringHead(Myself,7273) // Wand of the Heavens
      UseItem("_WAND11",LastSeenBy(Myself)) // Wand of the Heavens
END

I have added the reallyforcespell to check my LastSeenBy(Myself)
Sometimes, everything work correctly. otherwise, Useitem doesn't work at all, I see the string "Wand of the Heaven", enemy stops melee and look his target.
but nothing happens 

With the reallyforcespell line added, the target get the flame strike.

For example, in my last test:
1 fighter, 2 mages
cleric melee the fighter, he hold one mage.
while he is meleeing, he use wand each round on the other mage
the mage died in 2 rounds
so he must use his wand on the other mage, but it doesn't work
(lastseen work because the other mage take flamstrike)

Does someones know what happens? I would be so happy to make things working

[Avenger_teambg]

Instead of reallyforcespell, use displaystringhead, it is less intrusive.
Does your item have charge?

[aigleborgne]

Yes it does have charge (11 charges initially)
I will use displaystringheads, but that's not the problem