I'm having the same issue as 2 people I read about down below that fixed it somehow. My pumps are setup for the tanker, and the tanker comes in and totally destroys the pumps. I've made sure the tanker comes in at a straight line, so there's no chance of the curve causing issues, and I've tried moving the 'rails' down one notch and the pumps wont reach but are safe at the previous position. Any ideas?
P.S. I should note that the pumps were placed both in and out of the green markers you setup in sync with the port. Both get destroyed.
Otherwise this is an AMAZING mod - thank you so much for this!!!!