When going trougth, let's say "portal1" in "world1" which destination is "portal2" in "world2", instead of teleporting the player to "portal2", it teleports it somewhere really high in world2 (always the same place, I'm not sure if it has to do with the world's natural spawn).

Using the command "/mv tp p:portal2" and clicking on a green sign portal set to "portal2" both works great, but once again, going TROUGTH a sign-portal does not work properly.

I tested with the latest build of MV-Core, MV-Portal and MV-Signportal as of 09/10/2014 on Cauldron 1.7.10 (about any 1.7 build I used so far did this)

Wow, 1 month searching for the solution and I could not find it.
I report the problem, make one last random change to my config and tadaaaa! problem fixed >.>
I think it had to do with overwriting or letting the way vanilla prtals work.