Open browser - chrome > Open Jira.
Go to Chrome options (3 vertical dots on upper right corner).
Go to More tools > Developer Tools (Or press F12 if you are using windows).
Go to Network > Reproduce the issue.
Right click on the output window (As shown in below image in 6th steps) > Click on "Save as HAR with Content".
Save the HAR file and send to QMetry Support.