Why does Microsoft graph API for Onenote Notebooks ignore pages from certain sections?

Question

I am trying to gather all pages from all sections in a onenote notebook with the Microsoft Graph API. I've observed that the API will skip all the pages from certain sections regardless of whether I use the SDK (Powershell), Rest API with Powershell or the Graph Explorer. I assumed this was because of confidentiality issues but the API manages to gather information from some other sections that are on the same confidentiality level. I've also tried to create a query that targets the specific page I want and the API claims that the page does not exist even though I can clearly see it. Is this a known issue within the API or is there something I'm overlooking?