The double side material is a quick fix, but there’s still issues with the collision due the way the geometry is handled, such as I can walk through a wall where the normal is facing the wrong direction, but then once passed through, I am stuck.
The double side material is a quick fix, but there’s still issues with the collision due the way the geometry is handled, such as I can walk through a wall where the normal is facing the wrong direction, but then once passed through, I am stuck.