Scheduled Services Stop Running?

I have some scheduled services that run under a complex schedule(every weekday at 8am, noon, and 3pm). These services parse flat files, write to a Db table and then delete the flat file. When run alone from Developer(im a 3.6 guy) the services work perfectly. Recently however, we’ve seen cases where the service gets thru half the flat file, then stops processing it and doesnt kick off any type of error at all. Keep in mind if I run the service from developer it works perfectly on the same exact flat file.

What could possibly cause this and how do you fix??

I am experiencing similar problems. It is now end of march and since you posted your message in january, chances are you found a solution. I would be glad to share this if possible!