Basic eVTOL Tutorial - Airfoil Properties not Assigned

[Rohan Selvan]

Hello! I am following the "Basic eVTOL Analysis Tutorial". When I run the complete script, I noticed that the propeller airfoil is defaulting to DAE51 despite assigning "propeller.airfoil_geometry" and "propeller.airfoil_polars" with NACA_4412 airfoil data. 

Additionally, the rotor and segment convergence methods are unable to find solutions when I run the code. 

I noticed that the `propeller_design` function appears to use a key named 'Airfoils` to assign the airfoil properties. That same function does not appear use the keys 'airfoil_polars' and 'airfoil_geometry' to assign the airfoil properties as far as I am aware.

Is there a way to correct my script so that the NACA_4412 airfoil is used instead of the DAE51?

I am using the developer installation (cloned a fork of SUAVE). Please let me know if I can provide any additional information. Thank you for your time.

Sincerely,

Rohan