Issue Summary

In a Jira instance that has around 5,000 screens or more, clicking on the Update button in Jira admin ⚙ > Issues > Fields > System Fields > Description removes associations of the field to screens near the bottom of the page.
When a customer runs into this issue, they cannot easily revert back without doing the manual intervention workaround.

This is reproducible on Data Center: (yes)

Steps to Reproduce

1. Generate a Jira instance with 5,000+ screens
2. Navigate to Jira admin ⚙ > Issues > Fields > System Fields > Description
3. Tick and untick across several screens. Make sure to tick the last screen in the list.
4. Click Update.

Expected Results

No field-screen associations will be lost.

Actual Results

Before clicking update:
After clicking update:

Workaround

When updating a system field - screen associations for an instance with a large volume of screens, use the REST API instead:
https://docs.atlassian.com/software/jira/docs/api/REST/8.20.27/#api/2/screens-addField