Attempted to add post build action "Send build artifacts over SSH", if a file being sent has an asterisk ( * ) in the filename the step will fail without any useful information. I only tracked it down because I removed those files and it began to work.

This is a somewhat important issue, as the Jekyll plugin Responsive Pictures generates paths with asterisks in them, and they would need to be transmitted to the live server along with any other files. Currently the workaround is to transform their names with a legal set of filler characters, then undo that change on the production server.