Attachment preview in comments not showing after Jira Cloud to Cloud Import

[timo.wickert@qaware.de]

Hey all, 

recently I had to import a Cloud Backup into my Jira Service Management Cloud instance. Everything worked fine and I have all my issues and attachments. 

Only problem is the attachments do not preview in the comments as they were before. 
There is just a "Preview unavailable" field showing in the comment where the attachment preview should be. Even though the file is correctly attached to the ticket and I can open it from the attachments. 

Is there anything I can do to fix this? 

Thanks for your help. 

Kind regards, 

Timo

[timo.wickert@qaware.de]

Screenshot for better understanding.