AI gets stuck in other AI

I have a very simple ai system set up in which ai pick a random point from a set of predefined positions, move to it, and then repeat. I have a lot of AI in the level. The problem is that they get stuck in one another, and not at any of the predefined points. I use Nav Area Obstacle Volumes. I only use the blueprint AI move to node and nothing else. Pictures below. Could someone point me in the right direction? Thanks in advance. Let me know if you need anything else.