NClick NCLICK
Back to list
Announcements

Notice: Subject Practice Issue Recovery (2026.03.20)

announcement incident recovery practice

Notice: Subject Practice Issue Recovery

We would like to inform all NClick users.

From 03:00 to 13:00 (KST) on March 20, 2026, an issue occurred in the subject-based practice menu. The service is now operating normally after immediate stabilization.

Symptoms

  • Only random practice was available in the subject-based practice menu
  • Each subject displayed 0 questions
  • Subject selection was unavailable

Cause

During database maintenance, a conflict occurred with a legacy version, which caused abnormal behavior in subject question data display.

Actions Taken

  • We executed stabilization code immediately after detecting the issue.
  • We resolved the conflict area and normalized the data display logic.
  • Recovery was completed as of 13:00 (KST) on March 20, 2026, and subject questions are now displayed normally.

User Guidance (if updates are delayed in some environments)

Web

  • Windows: Ctrl + F5 or Ctrl + Shift + R
  • Mac (Chrome/Edge): Command + Shift + R
  • Mac (Safari): Command + Option + R

Mobile App

  • Fully close the app and reopen it.
  • If the issue persists, go to Settings > Apps > NClick > Clear Cache, then relaunch the app.

We sincerely apologize for the inconvenience. We will strengthen our inspection and validation process to prevent recurrence.