Notch in loft

So I encountered this weird glitch when designing a turbine blade. I created a series of ribs and lofted them.
![airfoil loft glitch](https://github.com/user-attachments/assets/7c717704-543d-4952-a339-a48f8db77bc0)
The notch is next to rib3 in the attached document.
[airfoil loft glitch.FCStd.zip](https://github.com/user-attachments/files/18418674/airfoil.loft.glitch.FCStd.zip)
