[2020] Stranded Tanker - Crane bugged

Hi,

Trying to do the League Stuff from the new season. Stranded Tanker is one of the speed run missions. But I can't finish the mission.

At the end, there's a yellow crane, you shoot a few weak points off, but the crane is bugged. The game won't start the animation of it spinning round. That opens up the weak points for me to shoot.

Tried restarting a few times, but no joy. Playing on PS4 on challenging, I'm a group of two.