Language specific node after updation redirects to /node/xyz instead of lang/alias on Drupal 8.5.3

Here are the steps .

  1. Load the page in browser
  2. Click on contextual edit button which opens the drupal editing interface.
  3. Make updates on custom-page node.
  4. Save and Publish the changes.
  5. Page is redirected to instead of . Although the updates are saved.

Can somebody suggest what should I do to fix this ?

Drupal version: