The default content types of “New Document” and “New Folder” link to the appropriate pages for adding a new document or new folder. When clicking on any other content types (i.e. New Basic Page, or New Link to Document), it links to a non-existent page.
Title
SharePoint Document Library issue with added Content TypesDescription
Cause
This is a known issue
Resolution
WORKAROUND:
None
STATUS:
Enhancement request CR60882 has been submitted to the Development for consideration in a future release of Development Studio for SharePoint
Defect ID
This is a known issue