yeah you are correct they do have task on hand. but do they suppose to just hover around the robot port for a while?. like on this [https://imgur.com/tatWlef. the robot only wait in circle around the roboport and they have 0 battery. i thought they suppose to drop their items and go another task ...

Please enlighten my stupid ass. rather frustrated on this

NO. They are stuck, not because i dont have enough storage chest. How do i know this?

Because i have a 50 empty storage chests besides the damn roboport.