Migration Error: Start Button Does Not Trigger Job
When Start Migration does nothing, validate action binding, nonce, and backend enqueue behavior.
Meaning
The UI action was triggered but no migration job was created or dispatched.
Likely Causes
- Broken action handler binding in current admin view.
- Missing nonce/session validation state.
- Backend request path not reaching queue creation routine.
Triage
- Check browser console/network for failed AJAX request.
- Verify admin nonce and capability checks.
- Inspect plugin logs for migration request entry.