Hi,
Based on the issue you're encountering with the "Page Not Found" errors and the URL structure changes, it sounds like there might be a need to ensure your items are correctly shared and accessible in your Hub's content library. Here's a workflow that could help resolve the issue:
- Open your site in edit mode.
- Navigate to the Content Library section.
- Choose to "Add Existing Content" to your library.
- Use the search and filter options to locate the specific items you want to add.
- Select the relevant items and confirm by clicking "Save."
- It might also be helpful to manually update the content in the library after adding new items, as updates can sometimes be delayed.