Can't import joblib files to Azure - logstream problem

Question

I'm trying to deploy a machine learning model in an Azure Function App in Python. It's saved as a joblilb file, but when I try to import it, it returns only a general fail error.

filepath = '/home/site/wwwroot/my_model.sav'
model = joblib.load(filepath, 'rb')

I'm able to load other files (ie, json), the path seems correct, and all the model dependencies should be installed. The main issue is not being able to get more detailed logs on this specific crash.

Any suggestions?