I have a channel that includes a File field type. I have set two user groups to be able to upload all file types to that field. As a Super Admin I am able to upload there, but members of the other group cannot. I have set the upload directory permissions to 777 and I have confirmed that the group has permissions in EE to upload there - see attached. However, when logged in as a user of the other group, when I try to upload a PDF, I get an error that says:
The file could not be written to disk.
The file size is far less than the max file site allowed.
Normally I would think this is a directory permissions error. Any help would be appreciated for sorting this out.