Every day for all of time, except Tuesday,Thursday,Saturday,and Sunday" Not working

[Gomitak]

var vEvent = new Event
{
Summary = "BIO CLASS",//subject
Description = "Details at CLASS",//description of meeting
Location = "Building 101",//location
DtStart = new CalDateTime(DateTime.Parse("2017-06-01T08:00")),
DtEnd = new CalDateTime(DateTime.Parse("2017-06-01T09:30")),
RecurrenceRules = new List { new RecurrencePattern(FrequencyType.Daily, 1) },
};

            //Define the exceptions: Sunday
            var exceptionRule = new RecurrencePattern(FrequencyType.Weekly, 1)
            {
                ByDay = new List<IWeekDay> { new WeekDay(DayOfWeek.Sunday), new WeekDay(DayOfWeek.Saturday),
                new WeekDay(DayOfWeek.Tuesday),new WeekDay(DayOfWeek.Thursday)}
            };
            vEvent.ExceptionRules = new List<IRecurrencePattern> { exceptionRule };

            calendar.Events.Add(vEvent);

[Gomitak]

The code seems to ignore the exceptionRule and places the event everyday.