That's one of the new portals that Flix implemented, they're based on balloon NPCs but act like portals. You'll notice how the icon on the map has a green arrow over the portal icon. That's how it's supposed to be now.
FYI, I've previously tested all of the new portals and they all work properly.
Hi, I just want to thank you for this great mod, it really enhance sacred 2 specially in the aspect of minions, I'm enjoying a lot this last aspect. Can I request you something? The Hurricane CA of the druid whenever I cast it, it cause a big FPS drop when I activate it. I think that is because spawn too much particles.