Bug? following Behavior Tree Quick Start Guide

Development Programming & Scripting Blueprint
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1

Hi,

I was following the documentation guide on Behavior Trees.
After completing the guide and finally testing the code, I ran into trouble with the enemy character.

In testing, after escaping the enemy’s line of sight, the enemy would not proceed with the patrol sequence; rather, it would stay in place.

This screenshot shows the game paused as it reaches the move to node, upon which it displays “move target: invalid”

Screenshot 2024-04-09 233959
Screenshot 2024-04-09 2339591920×1163 179 KB

What is the potential fix for this?

2

If you look in your BBT_FindRandomPatrol, click on the task and look in the details panel. Is PatrolLocation set to PatrolLocation? Once I found this and changed it to the correct value, the behavior tree ‘behaved’ appropriately.

3

Try adding a selector after the root and a bb based condition for not set to execute the random patrol