holding key down not working in loop

[christian11]

im trying to make randomly hold 3 keys but its doesnt work any suggestions?

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#cs ----------------------------------------------------------------------------

 AutoIt Version: 3.3.14.2
 Author:         myName

 Script Function:
    Template AutoIt script.

#ce ----------------------------------------------------------------------------


; Script Start - Add your code below here


Global $Paused, $counter = 0
HotKeySet ("{HOME}", "Start")
HotKeySet ("{END}", "_Exit")





While 1
Sleep(200)
WEnd

Func Start()
While 1
    call ("ClickRandomly")
    sleep (500)
WEnd
EndFunc


Func ClickRandomly()
    Local $RandomNumber = Random(1,3,1)
    If $RandomNumber == 1 Then

send ("{a down}")
sleep (2000)
send ("{A UP}")
sleep (5000)
    EndIF

  If $RandomNumber == 2 Then

send ("{d down}")
sleep (2000)
send ("{d UP}")
sleep (5000)
EndIF
       If $RandomNumber == 3 Then
send ("{w down}")
sleep (2000)
send ("{w UP}")
sleep (5000)
    EndIF

EndFunc


Func _Exit()
Exit
EndFunc