Problem: SharePoint Online folder appears empty in the File Explorer view!
The same SharePoint folder shows empty in the mapped drive or file explorer with a message: This folder is empty!
Root Cause and Solution:
Here are the root causes and solutions for this issue:
- When any of the file or folder names in the URL are more than 128 characters.
- The Full URL path (Files and folders together) exceeds 260 characters.
- You may also face this problem when the total number of files in a single folder exceeds the threshold value of 5000! SharePoint Online: Find All Folders Exceeding List View Threshold Limit of 5000
- It could be because of the site collection feature, “Limited-access user permission lockdown mode” as well. Disable it! Limited-access user permission lockdown mode Feature in SharePoint