I'm having a problem on a site that I manage where users can't upload files because the file attachments section doesn't show any inputs:
The exact same code on our dev environment works as expected, with pretty much the same database:
I suspect that the problem has to do with file permissions or upload size restrictions, but I'm not sure.
Drupal documentation on this, and forums, are pretty sparse. Any ideas?
Edit: I'm seeing this error message in the status report. Maybe it's related?
Thanks for all the help everyone. The answer to this problem was much simpler than I had expected--we just had to clear the Drupal cache. It was complicated by the fact that we didn't have full control over the production server, but once we cleared the cache from the browser everything was working again. Hope that helps anyone who runs into a similar situation.
Clearing the cache should be one of the first steps for addressing Drupal issues it seems! Should have thought of it earlier.