[Gambenius]

It's FSAE related so i can't post the whole car, but what i have is a monocoque, a front wing, the main hoop and a 4 elements rear wing, which leaves me with 7 surfaces intersecting the symmetry plane.
I am meshing only the right half of the car, the domain assembly goes fine and doesn't run into any errors, but when i try to assemble the farfield, selecting y+ and z- as symmetry planes (the wheel contact patch touches the ground and the car is split in half vertically), all i get is an invalid block, sometimes it doesn't even make the green cells of the farfield symmetry plane, sometimes it does this strange stretching thing (the one in the pic).
I'm starting to become crazy, does anyone of you have a decent idea on why this happens?
Note that only the Front/Rear wings and the main hoop do this, the monocoque doesn't give me any error.
I am using solidworks and the monocoque/front/rearwing/hoop is a single solid body, i already tried to split the wing in 2 using a surface cut.
Sorry for the bad quality photos but as i said i can't post the whole car.

Thanks in advance