In the TV series Kite, Zheng Yaoxian was betrayed by Xu Baichuan under the pseudonym of Zhou Zhigan. Why do you get caught in the Yin and Yang Bureau whether you go or not?

The logic of Yin and Yang Bureau is not established, and the premise of Yin and Yang Bureau is 1. By default, the real Zheng Yaoxian is in the mountain city. He will definitely see the signal left on the street and will definitely go to the appointment after seeing the signal. 2. Zheng Yaoxian didn't know the news that Xu Baichuan was arrested. As long as there is this major premise, this yin and yang bureau can be established. But I don't think this premise is correct, so I think the yin and yang bureau is not strict. Why didn't Zheng Yaoxian know that Xu Baichuan was arrested? This is a joke. First, in the plot of arresting Xu Baichuan before, Xu Baichuan was not arrested secretly, but arrested in a public place, and there is no guarantee that the news of his arrest will spread. Second, Gong Shu and other latent personnel already know the news of Xu Baichuan's arrest. Although they don't know how to contact Zheng Yaoxian, they can spread the news of Xu Baichuan's arrest to everyone. This way will definitely let Zheng Yaoxian know the news. Third, the public security bureau has arrested so many people that it is difficult to guarantee that there is no information leakage. So the Yin and Yang Bureau is a bug.