Articles not appearing in order of publication date

We have a website made with Prismic that displays a series of articles in landing page, but they're not displayed in the order of publication. I reached out Prismic team and told to change code to:
{ orderings : '[document.last_publication_date]' }
but that was already in place and it doesn't fix the issue.

What else could be done to solve this?

Hey Sophia, welcome to the community!

Could you please share with us the URL of your repo and the query you're running so we can reproduce it on our end?

Thanks a lot

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