[Retra]

No, the saving issue is stock OS X. I don't have an exotic setup. See: https://discussions.apple.com/thread/6043029

The server file deletion might be, but I'm doubtful. In either case, it was OS X that was giving useless error messages. Like this, except I wasn't moving it to trash:

http://i.stack.imgur.com/RmGAy.png