We have a multisite network, one our sites are trying to upload files using the wordpress Media Upload and we either get a "HTTP error" or "this file type is not permitted for security reasons".
The user that is affected is a site admin, but not a network admin. I am able to upload the file fine using my network admin login.
http://www.blundstonearena.com.au is the affected site using Upfront.
I have checked the multisite Upload File Types and pdf and jpg are in there and these are the file types they are trying to upload.
Does anyone have any suggestions for a fix for this?
I have allowed support access to the site.