If the player dies in the boss room, the boss will continue pathfinding to them and can escape the boss room if the player does not get back to the boss room fast enough. This means the boss cannot be killed because the player is unable to disable the pylon and reach the boss in time to damage it, or has to wait for the boss to navigate back into the boss room.
One solution to this is to stop the boss from tracking the player once killed, and restart tracking when the player is in the boss room. Another solution is to block off the exit to the boss room when the fight begins and make the player respawn at the start of the boss fight when they die.
If the player dies in the boss room, the boss will continue pathfinding to them and can escape the boss room if the player does not get back to the boss room fast enough. This means the boss cannot be killed because the player is unable to disable the pylon and reach the boss in time to damage it, or has to wait for the boss to navigate back into the boss room.
One solution to this is to stop the boss from tracking the player once killed, and restart tracking when the player is in the boss room. Another solution is to block off the exit to the boss room when the fight begins and make the player respawn at the start of the boss fight when they die.