Enemy pawn sensing not seeing player after smoke grenade has gone off

I have an enemy that when the pawn sensing sees the player it sets the variable HasSeenPlayer on a blackboard to switch to attacking. I also have a smoke grenade that whenever one of the enemies end up in the smoke the HasSeenPlayer variable goes back to false and it goes back to patrolling. My issue is then when I try to be seen by the enemy the variable doesn’t turn back to true.

Thanks for any help

you dont want to change the blackboard directly there you want to change the sensing. i havent used it myself but there is probably some clear function