bug: reports for us18 dc do not work when using Mailchimp Client

[SnirYadid]

We are obtaining account data using the Mailchimp Client, via the npm library.
When requesting data for the US18 data center, the request failed with a 400 status code for unknown reasons.
We're getting the following error: "Your client has issued a malformed or illegal request."

When we requested data for other data centers, the data was retrieved correctly.

We're using the 3.0 version.
Base URL: https://us18.api.mailchimp.com/3.0

Some of the reports we attempted to retrieve were: automations, lists, and campaigns.

We used a valid token, it worked when we tried to get data directly from the MailChimp API for us18 data center.
mailchimp-error.txt

We received the following response:
mailchimp-error.txt
Is there a reason why we can't get data when we use the MailChimp Client for us18 data center?

Any assistance is appreciated.