Mailchimp Action doesn't recover all Audience lists. I see only 10 Audience instead of 13!

I recently discovered your platform, so I just created an account and immediately connected all my Apps. Then I tried to create the connection between Facebook Lead and Mailchimp: everything is ok, but the main problem is that Mailchimp doesn't recover all my Audience lists!! I have 13 Audiences on Mailchimp and the connector only fetches 10 lists. How come? I initially thought it was due to the creation date of the list, but it's strange because I don't see my first Audience created on Mailchimp more than 4 years ago and the last 2 Audience (one created a few months ago and the last one I created a few days ago). Now, if the connector (Mailchimp Action) doesn't get all the Mailchimp Audiences, it's impossible to use it. I need to get my last Mailchimp Audience but I can't find it in the option "Audience" of Mailchimp Action.

What could be the reason? Do I need to check any particular settings on the list options on Mailchimp platform?

Thanks.