Message Custom Field (for edit) not being displayed when creating/editing an issue

Issue Summary

When attempting to the read-only Message Custom Field (for edit) field provided by the JIRA Toolkit Plugin, it does not appear when creating or editing an issue. This issue has been ongoing since May 12th, 2023, and multiple users have experienced the same problem. This feature was functioning correctly before this date. I can confirm that the field is correctly added to the screen(s) and if has a proper context with a default value on it.

Steps to Reproduce

Follow the steps in this KB Article: https://confluence.atlassian.com/jirakb/add-a-custom-message-to-the-create-issue-screen-in-jira-server-759990667.html

Expected Results

The field should appear in the issue create/edit screen if added.

Actual Results

The Message Custom Field (for edit) is not being displayed

Workaround

There is no workaround