Pop-up windows not closing on shutdown

[Doug Miller]

Recently I have seen sporadic errors where pop-up windows are not closed when the main window closes and the application exits.

I do call CEF.Shutdown() 

prior to calling

            if (Application.MessageLoop)

            {

                Application.Exit();

            }

Both of these are called after the main window closes.

I have not been able to reliably replicate this or detect any exceptions.

I am using a WinForms browser with version 37.0.1.  This is occuring on Windows 7 64bit machines.

At this point I am just looking for suggestions about what could cause this.

[Alex Maitland]

Can you reproduce the problem with `39.0.2`? That should have been resolved.

[Doug Miller]

I have not tried that, but will do so asap.  Good to know it has been resolved.

[Doug Miller]

I upgraded first to 39.0.2 and today to 41.0.0. Now  I don't see the windows left open at shutdown ... but I occasionally see a CefSharp.BrowserSubprocess.Core exception when exiting the app.  I included a screen shot of the exception detail below.  

I am both passing shutDownOnProcessExit true to Cef.Initialize(), and calling Cef.Shutdown() when the process is exiting.  Should I not be doing both?