Heli Wave doesn't work

hey,

great plugin! my current challenge is that in heli wave, only the first heli comes. 

 

  "Heli Wave Options": {

      "Heli Wave Signal (Normal)": {

        "SkinID": 3104667036,

        "Profile shortname (for use in permission and give command)": "wave_normal",

        "Enable purchasing using custom currency via the buy command": false,

        "Cost to purchase (using buy command)": 10000,

        "Cooldown delay between waves (seconds)": 120.0,

        "Heli Wave Profile List (Helis Called in Order From Top to Bottom)": [

          "Heli Signal (Easy)",

          "Heli Signal (Medium)",

          "Heli Signal (Hard)",

          "Heli Signal (Elite)",

          "Multi Heli (Easy)",

          "Multi Heli (Medium)",

          "Multi Heli (Hard)",

          "Multi Heli (Elite)"

        ]

      },


the names correspond to the profiles correctly