https://bugs.winehq.org/show_bug.cgi?id=38932
--- Comment #7 from Vincent Povirk madewokherd@gmail.com --- Adding a check for property.PropertyType != null to SettingsPropertyValue before accessing property.PropertyType.IsPrimitive gets past the exception, and the login window shows (with an empty webview it seems?).
So then the question is, how is PropertyType supposed to be initialized for this application, or is null an acceptable value?