Dummy cast shockwave don't work..

[Nikita17]

• TimerAtck Copy
  • Events
    • Time - AtcTimerMob expires
  • Conditions
  • Actions
    • Set VariableSet CreepGroup = (Random 6 units from (Units in (Playable map area) owned by Player 7 (Green)))
    • Set VariableSet TempPoint1 = (Position of UnitLeg[1])
    • Unit Group - Pick every unit in CreepGroup and do (Actions)
      • Loop - Actions
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Unit-type of (Picked unit)) Equal to GhostVillagerWatcherArcher
            • (Distance between (Position of (Picked unit)) and TempPoint1) Less than or equal to 1000.00
          • Then - Actions
            • Game - Display to (All players) the text: 1
            • Unit - Order (Picked unit) to Orc Tauren Chieftain - Shockwave TempPoint1
          • Else - Actions
    • Custom script: call DestroyGroup(udg_CreepGroup)
    • Custom script: call RemoveLocation(udg_TempPoint1)

I don't know why, but any type of order works except this one.