Combobox bug

Hi,

I was testing the indicator I am developing and came across a ctrader bug.

For example, with the code below, selecting "Item 2", change chart tab and go back to the tab where we have the indicator, it should keep "Item 2" selected but visually it's without any information, as if it were empty. I have tried to solve it via code, but the logs return "Item 2" selected, I believe it is a visual bug. Can someone test it please?

Thanks in advance
 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using cAlgo.API;
using cAlgo.API.Collections;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;

namespace cAlgo
{
    [Indicator(AccessRights = AccessRights.None)]
    public class ComboBoxTest : Indicator
    {
        private ComboBox myDropList;

        protected override void Initialize()
        {
            myDropList = new ComboBox
            {   
                Width = 100,
                Height = 20,
                HorizontalContentAlignment = HorizontalAlignment.Center,
                VerticalContentAlignment = VerticalAlignment.Center
            };
            
            myDropList.AddItem("Item 1");
            myDropList.AddItem("Item 2");
            myDropList.AddItem("Item 3");
            
            Chart.AddControl(myDropList);
        }

        public override void Calculate(int index)
        {
            //...
        }
    }
}