Few things you could do, In your Ai move to the acceptance radius is set to 5.0 and the location is set to be the the “TopDownCharacter” , This essentially means that the Ai will never be able to reach the acceptance state due to collision around the characters. Try Increasing the radius to around 100.0f.
Edit: Also Depending on how your perception component is setup you could be calling this multiple times when the perception update gets called. Consider creating a system to manage that to avoid unwanted behaviors.