Material Combiner makes model's pigtail front faces invisible. Help please! [RESOLVED]

Here’s a pic of what I’m talking about:

The ponytail on the right should be the same as the one on the left, yet the right one seems as if you could “see through” it and only see the faces of the model on the back.

Any ideas? Thanks! :slight_smile:

[UPDATE] It was just flipped normals!