Error rendering SharePoint List macro
Problem
On a Confluence page with the SharePoint List macro in display mode, you get the following error message:
In edit mode, the metadata loads endlessly.
Solution
This problem could be caused by a corrupted SharePoint site index and hence a missing parameter in the search result.
In this case, reindexing SharePoint Online site should solve the problem.
- Navigate to the site collection in SharePoint Online where you have the issues to embed content from and go to the > Site contents 
- Go to > Site settings 
- Click on > Search and offline availability 
- Click on > Reindex site 
The reindexing can take up to several hours.