CapturePreviewAsync exception

Description
System.InvalidOperationException : 'CoreWebView2 members cannot be accessed after the WebView2 control is disposed
But WebView2 is not disposed

Version
SDK:
Microsoft.Web.WebView2 1.0.1133-prerelease
Microsoft.Web.WebView2.DevToolsProtocolExtension 1.0.824
Framework: WinForms
OS: Win10

Repro Steps

private async void CopieWebBitmap()
{
            MemoryStream ms = new MemoryStream();            
            await webBrowser1.CoreWebView2.CapturePreviewAsync(CoreWebView2CapturePreviewImageFormat.Jpeg, ms);            
            Global.xbrowserImage = new Bitmap(ms);
            ms.Close();
            ms.Dispose();
}

private void webBrowser1_CoreWebView2InitializationCompleted(object sender, Microsoft.Web.WebView2.Core.CoreWebView2InitializationCompletedEventArgs e)
        {
            CopieWebBitmap();         
        }

Screenshots

Additional context

AB#37874270

Start with the CopieWebBitmap method and webBrowser1_CoreWebView2InitializationCompleted callback in the reported WinForms reproduction. Run the example with Microsoft.Web.WebView2 1.0.1133-prerelease and the listed DevToolsProtocolExtension version, then inspect when the WebView2 control is initialized or disposed relative to CapturePreviewAsync. Done means the lifecycle condition is reproduced and documented with a minimal explanation or confirmed product issue.