LandTrendr.js not working for NDFI

[ericacinerea]

Hi all,
First, thank you for this implementation; it is beneficial.

I have a question regarding the use of the NDFI index. I am calling the script LandTrendr.js in the GEE code editor as follows:
var ltgee = require('users/attel/Funciones_RS:LTR/LandTrendr_attel.js')

Currently, it is not working; I am unsure if this is intended because something still needs to be figured out.

I have included the 'NDFI': -1 to the indexflipper function , and the script works. However, I am not sure if I see the correct results. They seem correct when I compute the loss, but I am not sure about the gain.

Is there any experience with this?

Thank you very much in advance

[ericacinerea]

Results are the same with flip value 1 and -1.