Option-Expiry-Date-of-April-14-2022-not-recognized

The monthly option expiry of 4/14/22 is not recognized in WL8 (though it is in WLD6.9).

Test code:

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Collections.Generic;

namespace WealthScript2 
{
    public class MyStrategy : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
        }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
         if (bars.DateTimes[idx].IsOptionExpiry())
         {
            SetBackgroundColor(bars, idx, WLColor.FromArgb(64, WLColor.LightPink));
            WriteToDebugLog(bars.DateTimes[idx].ToShortDateString());
         }
       }

        //declare private variables below

    }
}

Debug window output:


Chart shows the bar is not highlighted:


CBOE Options Expiration Calendar (I circled the missing date):



Monthly options typically expire on the 3rd Friday. This year that was a Good Friday (4/15/22) and the US markets were closed so the option expiration was 1 day ahead i.e. on 4/14/22 as the calendar shows.
Please fix.


P.S. I only checked the last 2 years of data.