Are you running the backing of the startup config and running config at the same time? If yes, maybe try creating 2 jobs. One to backup all the startup configs and then another one (say 30 mins later) that backs up the running configs.
Personally I think it's overkill to back up the startup and running configs daily. I do mine only once a week but I do have realtime change detection turned on. So if someone changes the config, NCM will automatically make a copy of the running config. Makes it really easy to trouble shoot as you can see exactly what someone has done to the config.