Jira issue attachments
You can restore Jira issue attachments from your Jira site
Click on Clone & Restore in left navbar - > Click on Granular restore in top navbar
Click on Jira issue attachments
Select file size,projects & file extensions (optional)
Click on Restore preview
Select attachments to restore
Click on Restore
Select options in prompt
Original issue key (Attachment restored in same issue)
Alternate issue key (Attachment restored in different issue)
Click on confirm
You can check all restored jobs in jobs in top navbar