Unable to download attachments for one project

Question

Hi All,

I have many projects setup within Jira Service Management. 
One specific project is not allowing users to download attachments from a Jira ticket (using the Customer Portal)

I can access/download the files both from the Customer Portal and Jira itself (but im an admin)

when they try, they just get a blank page with the URL for the file download. 
If i go directly to that URL, i can also download the file.

Other projects dont seem to be affected by this problem.

Any Suggestions?

Adrian Gunther · Answer

Adrian Gunther · Answer

it SEEMS to be setup correctly in the project permissions, but says he doesnt have access :(

Zhiyong Lin · Answer

Please check the user's permission