Flags are disappearing in new next-gen projects

Summary

 The flags for the issues in the new next-gen project disappear after refreshing the page.

Environment

Jira Cloud next-gen projects

Steps to Reproduce

1. Create a new next-gen project
2. In the backlog or the board create a new issue
3. Add flag to the issues
4. Refresh the page

Expected Results

The issue with the flag remains highlighted

Actual Results 

The issue is still flagged when checked from the issue view while on the board its disappearing.

Workaround (If there is no workaround directly say so) 

No workaround