SeleniumBase: self.type does not work with ie

The following code, works under firefox, and chrome. Under IE 11 (specifically 11.1082.18362.0), it simply fails. Reporting that the input#UserName element does not exist.

I clearly see the element, although IE is horribly slow to inspect the element.

Is there a better way, for me to manage this. Since IE is the “officially” supported browser for our organization, I really should perform the automated testing with it.

    def locker_login(self, username=SERVER_TO_TEST["USER"],
                        password=SERVER_TO_TEST["PASSWORD"]):
        """
        Login to the web site, user the username and password provided.
        """
        self.go_to_server()
        self.type("input#UserName", username)
        self.type("input#Password", password)
        self.click(".btn")
        self.assert_element_present("span.username", timeout=5)