Go to the BP_AISpawningVolume and create a new variable called Trigger Activated Responses and set it to an Array and set the variable type to S_TriggerResponse. Next create another new variable called Trigger Deactivated Responses and set it to an Array and set the variable type to S_TriggerResponse.

Then copy the image below, location at the top of the screenshot.

Go to the BP_AISpawnPoint and create a new variable called Trigger Activated Responses and set it to an Array and set the variable type to S_TriggerResponse. Next create another new variable called Trigger Deactivated Responses and set it to an Array and set the variable type to S_TriggerResponse.

Then copy the image below, location at the top of the screenshot.