Ai spawn system broke my behavior tree. Accessed none error when trying to set blackboard value as vector?

Development Programming & Scripting Blueprint
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I changed from just dragging my Ai character into my map to a spawner system that spawns Ai when they reach a number less than or equal to 0. My problem is now my Ai’s blackboard values won’t set such as setting sound location in order to move to that location. I think it has something to do with the Ai Controller but I’m not sure what to do. Here are some pics:

So I have a blueprint actor that spawns the Ai:

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Then I have it set to run on a timer in my Gamemode:

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My issue is setting the value to vector. It gives me an error saying accesses None

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My behavior tree never gets to go to this branch because I never can set the soundLocation variable in blueprint:

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I’m pretty sure it has something to do with my AiController but I have no clue what i need to do

If anyone knows why this is happening please let me know. If you need more info just let me know.

Thanks,

Whippy

2

So I slept on it and figured out what the problem was. Turns out I was setting the AiController to a variable on event begin play and using that to get the blackboard value. What I needed to do in order to fix it I changed it to get controller:

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