每个表视图单元中的Firebase数据库观察者

I am creating a chat application where the main view is a tableView with each row representing a chat. The row has a label for the person's name as well as a label with the latest chat message. If a user taps a row, it will segue into a chat view. I am using MessageKit for the chat framework. All is working well except I am having trouble displaying the most recent chat consistently.I am creating a chat application where the main