Why doesn't CefSharp display web url data after opening from application tray?

Question

C++ / C#

When I run an application written in c# - web page data is displayed successfully.
If you minimize the application to tray and expand it, there will be no data in containers under the web page.
Tell me what the problem is and how you can solve it ..
Thanks in advance.
The code for loading my pages (I will show an example on one)

private ChromiumWebBrowser chromeFirst;

        private void firstChrome() {
            chromeFirst = new ChromiumWebBrowser("https://launcher.lightning-team.ovh/launcher/");
            this.pContainer.Controls.Add(chromeFirst);
            chromeFirst.Dock = DockStyle.Fill;
        }

       private void initChromiun() {
            CefSettings settings = new CefSettings();
            CefSharp.Cef.Initialize(settings);
            settings.PackLoadingDisabled = true;
            firstChrome();
     }