Hello,
I have updated a website to Pro V 6.0.3 and now Cornerstone shows a 404 error. To remedy the situation I have:
- Cleared the Cornerstone cache
- Changed my permalinks structure
- Changed the standard URL of Cornerstone from /cornerstone to /editor
- Ensured there are no conflicts in terms of page names
- Disabled all plugins
- Switched back and forth between Pro and a Pro Child Theme
Can you advise what I can do to fix this situation?
Many thanks for you support.

