Hello, I have finished the story in the inova region and I am just past undella town and tried to go to the last town, black city, and these cones are in my way. Is there something I need to complete in post game to access that last town? I tried going in from the other direction (across the bridge from nimbasa city) and it was also coned off. Any ideas as to why? I have beat all the gyms, beat the league, beat N and ghetsis, caught all the sages.
Any help is appreciated, thanks!