move down task won't stop if the remote folder is empty

I'm using ftp Voyager at a daily basis to check remote sites and move down all files.

The task works almost every day. Exception are when the remote ftp site is empty. Here the task will run continuously.

I've tried to turn off keep alive, but it continues to run forever.

I'd like the task to fail, if no files.

Anyone knows what i'm doing wrong?

Thanks.