Outlines not loading for some documents

Which product are you using?
PDF.js Express Plus

PDF.js Express Version

(index) Value
UI version ‘8.7.0’
Core version ‘8.7.4’
webviewer.min.js ‘8.7.5’
Build ‘Ni8xNi8yMDIzfDhhZjQyYTgwOTU=’
WebViewer Server false
Full API false

Detailed description of issue
For some of our client’s documents the Outlines section is showing empty

Expected behaviour
it should display all outlines as it does in a PDF reader, like Acrobat

Does your issue happen with every document, or just one?
It happens with some documents, not with all of them

Link to document
Sorry files from our clients are confidential

Code snippet
Not a code snippet but an error log I’m seeing
Uncaught (in promise) TypeError: Cannot read properties of null (reading ‘G13379423’)
at t._parseOutline (PDFJSDocumentType.js:2:898510)
at PDFJSDocumentType.js:2:890385
at Array.map ()
at PDFJSDocumentType.js:2:890357I

Hello zipboard,

Thank you for reaching out!
Can you provide a sample document that reproduces this issue?

Additionally, if you could test this issue on our sister product WebViewer which may indicate if its an issue with the PDF or the UI.

Best regards,
Tyler