Thanks for the detail, Alex. When you originally said that all you saw was a white screen, were you seeing the "Loading..." image or was it completely blank?The DebugLogin option that you set essentially hides the loading image, so maybe the desktop app wasn't recognizing that your login page had lo...

> Is it Internet Explorer instance, BTW? If so, which version?The window is using a .NET WebBrowser control that is emulating IE 10. So while it's not technically an embedded IE instance, you can consider it as if it were IE 10. I'd recommend verifying that the sign-in page renders correctly in a sm...

> Does it use some specific remote API or uses some local command line tool verifications?The backend uses Node.js to make HTTP requests. Specifically, it uses the request module. I'm not sure how the module verifies SSL internally, but hopefully that information should give you an idea of where to ...

Hi Alex,Thank you for reaching out. As the error message states, the desktop app's backend is indicating that there is an issue in the SSL chain. Web browsers will often ignore these kinds of errors, but the desktop app uses more strict enforcement of SSL. I would highly recommend re-verifying the c...