Vivy Hair: What's going on here?

Hylas

https://www.daz3d.com/vivy-character-and-hair-pack-for-genesis-8-female

I'm using Vivy Hair for the first time, and I'm getting this weird horizontal line across the forehead.

First I thought it's part of the hair clipping into the forehead. But there is a morph that moves the bangs away from the forehead and even with that turned all the way up, I still get this weird line.

Can anyone guess what's going on here? If you own Vivy hair yourself, do you have the same issue?