Borderlands 3 Jack's Wild Quest - Go to power cable

I’ve gotten through the area with the loaders, and dropped down the hole in the lab ‘where i keep the nerds’ and I can see the cracked pipe/conduit that you are supposed to shoot. But I keep shooting it and the pipe is not breaking.
And there is no way to roll back these quests to a previous objective so you cant restart it if one breaks.