Ongoing Issues With Share To Review Functionality

I’m experiencing two ongoing issues with InDesign’s Review feature that have been consistently reproducible for the past three months.
 

Issue 1: Review links fail to update on larger documents
 

When uploading a publication for review, I can no longer update the existing review link. A persistent error appears stating:
 

“There was a problem updating the artefact.”
 

This workflow functioned reliably until approximately three months ago. To rule out local issues, I tested the same document and process on a second machine, with identical results.
 

Through testing, I’ve found that if I halve the document size (testing both the first 30 pages and the last 30 pages independently to rule out a problematic element), the review link does update successfully. This suggests the issue is related to document scale rather than specific assets.
 

The publications I work on are graphically intensive magazines, typically around 2.5GB in total size. Images are linked, not embedded, with many PSD files used throughout.
 

Tests were performed on:

• MacBook M1 (8GB RAM)

• MacBook M4 (16GB RAM)

  Both running the latest versions of macOS and all Adobe software.

Issue 2: Mobile review viewer is no longer functional
 

Around the same time the update failures began, the mobile review experience also degraded:
 

• Pinch-to-zoom and page navigation no longer work reliably on mobile browsers.

• On iPhones specifically, the page navigator at the bottom does not consistently update the page being viewed when tapped.

This is a significant regression, as many of our writers rely on mobile review to proof and annotate their work. Both of these issues have added considerable time and friction to a workflow that was functioning well 3–4 months ago. I would appreciate any assistance in identifying the cause and resolving them.
 

Appreciate any assistance in solving these problems.