If you’re getting a duplicate runway without Navigraph, than something else is going on for you.
Yes I get the bump across the end of RWY 13 and the ramp area too - I’m looking for a fix, but havent found one - surely we are not the only two people suffering this!
I’m trying for a while to correct some steps on bridges. I’m not sure this is your issue or not. Can you post picture to show it, that I can try to correct it. I will post on flightsim.to once done. I have hard time modifying the elevation on this airport, many side effects, but I will keep on trying.