C# updating notifyicon increases memory consumption

Have C# method call every second, which updates notifyicon icon.
And memory consumption grows every update.

My code:

private void UpdateTrayIcon()
{
    var info = GetRecycleBinInfo();
        
    try
    {
       notifyIcon.Icon = info.ItemCount == 0 ? Properties.Resources.tray_empty : Properties.Resources.tray_full;
    }
    catch (Exception ex)
    {
        MessageBox.Show("Error setting icon!");
    }
}

When notifyIcon.Icon line is commented out - no memory usage growth.

Any suggestions? What am I doing wrong?

Previously it was updated by new System.Drawing.Icon(iconpath) and it was same.

Answer

Found answer:

First initialize them on form load, or creation, or whatever:

iconFull = (Icon)Properties.Resources.tray_full.Clone();  
iconEmpty = (Icon)Properties.Resources.tray_empty.Clone();

And then

notifyIcon.Icon = info.ItemCount == 0 ? iconEmpty : iconFull;