Why can’t I attach fiels?
Can you be more specific?
I’ve noticed a lot of incoming orders are having the same issue. I wonder if it’s a bug.
I think it’s related to file name. You can try to re upload your file after renaming with just only the letters or numbers. Don’t use any special character or anything else like: $%#@^&* etc. Just rename it like: mydocument2015.doc