I am able to upload without issues. I have a test id that is also able to upload with the same permissions setting as the users.
But some of the users are getting internal server errors. After they select the photo and submit for the first step in the upload, there is a server error -
internal server error
website cannot display the page
I don't know if it was the right thing to do, but I began resetting the permissions to read-write for the folders and all sub-folders and files for /data/ and /upload/.
/upload/ appears to have completed, but /data/ has a great deal of volume and is still running. I haven't had a chance to find out if this has enable uploading yet.