Unstable llama caravan

While leading one llama thus forming a caravan, the rest of the llamas behind the leader would run around carelessly. They would even run away from the caravan and get stuck in a hole or river therefore they break their connection and it makes it so hard to maintain a caravan. The llamas should be as smart and organized as the ones in the java edition so that transporting items are a lot easier. There are some duplicate reports that are like this but I just wanna give attention to the issue considering that llamas are a good way to transport items.

In the pics, it was expected that the llamas would caravan in a straight line, but their AI seems unstable that's why they sometimes get left behind.