Is the sandbox still available after I complete a course but want to review that course? It seems no. Sandbox icon disappeared. How can I reuse a sandbox or alternative method for a course review?
The sandbox expires after 3 days. If you're partway through a course when it expires, a new sandbox will be created when you return to the course.
After completing a course a sandbox isnt automatically created.
You can however create your own sandbox instance at sandbox.neo4j.com or if you want a permanent instance you can sign up for a free Aura DB at console.neo4j.io.