cl.user_medias() always returns empty list

[ltroj]

I try to get a list of medias following the basic example of the readme.

After login I try with:

user_id = cl.user_id_from_username(USERNAME)
medias = cl.user_medias(user_id, 20)

However, medias is always an empty list (tried with two accounts). Am I doing anything wrong here?