Skin preview doesn't show 2nd layer from the inside

Summary:

When viewing a skin in launcher, the 2nd skin layer is not displayed when viewed "from inside" the skin. This effect can be achieved by making a 2nd layer at the corner of the skin. This does not happen in the game. And also on the nameMC website.

Steps to reproduce:

1. Create a 2nd layer skin on the corner of some part of the body.
2. Add the skin to the launcher.
3. Look from a parallel corner of the body part to the inside of the second layer.

Observed results:

From the inside, the 2nd layer is not visible.

Expected results:

The second layer of the skin will be visible even from the inside.