Ok, I didn’t understood correctly about the pulling/pushing. This evening I will check more carefully with the magnifying glass, but when I was relitting the portal the coordinate of the old link were showing in the chat, even if the second portal was no present anymore.
Then in my survival world it happened more than once that the same setup was initially working and then it stopped for some reason that I’m not really sure about without changing anything (maybe relogging or moving away from the area and then coming back was the problem idk).
I will do more testing and I will let you know.