Issue Summary

When using the "Spaces" -> "import from other tools" -> "Notion" Import tool, If the upload takes 10 minutes or longer, the upload will fail.

This is reproducible on Data Center: (yes) / (no)

Steps to Reproduce

1. Create a large Notion HTML backup ( >5 GB on a T1 upload speed will trigger, you may need larger based on your upload speed)
2. Start the upload and wait 10+ minutes.

Expected Results

The upload continues and eventually completes successfully.

Actual Results

The Authentication Token eventually expires and the Upload fragment API calls fail as "unauthorized".

Workaround

The only known workaround is to export smaller parts of Notion and import them. You can reassemble the parts into a single Confluence space after each part is imported.

If that does not work for you, you can reach out to Confluence Cloud support and provide this bug ticket in the request.