Falls es Jemand braucht:
Joomla! Issue Tracker | Joomla! CMS #48346 - Create Article Override from backend at 6.1.3
Issue tracking platform for the Joomla! project
issues.joomla.org
Workaround: https://manual.joomla.org/updates/60-61/known-issues/6.1.3/
Liebe Grüße
Christine