If you are tying to fire an FTp or shell/java/python command on the on_picture_save event, and its highly likely
that it is not firing, reason could be that motion user is not able to run your command at all.
Do a switch user to pi and try to run that command manually and see if their are any permission issues.
Do a chmod/chown of the file/dir your command is interacting with, check the absolute/relative paths your command
is executing, also do a grep on the /var/log/*.log for errors on your command name, check the motion log file on.
/tmp/motion/motion.log
enable the debug log inside the motion.conf file by changing the level to 8
also if you are running motion on jessie and upgraded from wheezy , these kind of problem will occur.
