On the Jira new UI, QMetry panels (Test Case/Acceptance Criteria, Test Case) are collapsed on the new Jira issue details screens. To open the QMetry panels on the new Jira UI kindly follow the below steps.
The issue detail page is managed by Jira itself, however, users can disable the new Jira UI for the issues from the Jira Labs. Follow the below steps to disable new Jira UI.
From the Jira new UI issue detail page, click on the Give Feedback option appears on the right corner of the new UI issue detail page.
Click on the turn it off in personal settings