AI won't see player until they're next to each other

so I was building an AI for a game I’m working on, and it has the ability to explode when coming within about 5 meters of the player. However, they are supposed to actively run towards the player to add an extra threat when fighting the boss that spawns them. Unfortunately, after building their code, they ignore the player until they are within said exploding region already.
can anyone help?
thanks,

What is your perception setup like? Maybe your behavior tree is preventing the chasing or your AI controller blueprint isn’t setting a blackboard key for the chase target?