A probable mistake of WenAlloy featurizer

Hi Matminer team!

I am currently using the WenAlloy featurizer to generate features for a high entropy alloy, as outlined in the reference. However, I have noticed that the feature named mixing enthalpy is different from the result that I have calculated manually. Specifically, I have noticed that all of the negative signs are missing from the WenAlloy-generated results, although the numerical values themselves are the same. As such, I believe that the difference between my calculations and the results generated by WenAlloy is due to a mistake of missing the minus sign. Could you please check the generation process and let me know if there is any feedback you can provide? I would greatly appreciate it.