3D Model import

Hello everyone,

I have a little problem with a 3D plane import from Blender into Unity.

My plane is a simple square with a circle hole in it (to mask a second camera.)
My problem is that my plane got 2 side visible, but in a different way.
Side 1 : Show the plan with a square hole in its center.
Side 2 : Show the hole in the place where the square were…

I don’t understand what’s going on :confused:

Thanks you.

Screenshots

The screenshot were taken on the preview bar and it is the same figure (flipped)