After a certain date, it seems that the attachment downloads link stopped working at some point.  If you take a look here, you will see what I mean:

• Gadget PDF: June 20, 2021 (works!)
• Piano Sonatina in D.pdf: July 16, 2021 (does not work)

I'm unsure what is going on here, but it does seem like an update of some sort broke the download links.  Do you think this is something that could be fixed in a new update?

 

Edited July 30, 20222 yr by chopin

This looks to be a modification that you are able to view other individuals' attachments. Please contact the author of this modification for assistance if there are any issues accessing items from it.

If you have examples of missing attachments from content in the core system, please provide links to the content.

That's the standard download attachment link, but newer ones usually have a security key in them. Are the ones you can't download all uploaded after a certain date perhaps? If so, it may be because the security key is missing from the download link that you're getting the error. But as Jim M said, that's a custom modification so you should contact whoever made it for you.

If they're not available anymore you can look at the Providers list to find a new developer to take a look at it for you: 

If it is this then I think I have a fix for that somewhere

 

 

Ahh, ok I see the problem.  Thank you for the tips, I was able to resolve by using the security key field in the core attachments table.

Glad to see you managed to get that issue resolved 🙂