AI Random Location same co-ordinates

Hello All,

I have started using Unreal engine recently and have followed some tutorials with Blueprints and the behaviour tree. I have been succesful in making some simple blueprint code, and the AI worked intially. However, ever since I started changing the agent radius settings in project settings, the AI now keeps going to the same point in the map, though it is meant to go to a random location everytime. I have tried everything and set everything back to default. I have remade the nav mesh multiple times and checked the blueprint. After pressing play, the AI finds a location and when I look in the debug mode, it always says it is trying to go to the same co-ordinates everytime.

Does anyone have a fix for this, as i would really like to progress with my project.

Many thanks.