We have this for crash reports. Perhaps that's a good idea to add a menu button for reporting other bugs. Do you have suggestions as to how to make that discoverable?
To me it looked like a crash, but I do understand that programmatically it wasn't a "crash" or an unhandled exception.
2. Since this is a pre-alpha/alpha/beta version, there's nothing wrong with a green button with a picture of a bug anywhere in the interface. Just open a dialog explaining that although horrified, you'll be thrilled to learn of any bugs.