That is due to the time settings are restrictions, it filters out select times you can alter them if you want to, although they are in place to help protect violet times aswell as common news times! if you backtest with visual display you will see it switch between the two on the time frames!

It starts at 9am ends 12am and 2nd session it runs is 3pm to 7pm please make sure to alter the risk % as its default is 0.01% risk i recommend around 0.5% risk