Why does the job I have built close automatically when I sync?

This is usually due to various reasons that make it impossible for TaroWorks to find the objects or fields you have included in the form or the job. There are two things to check:

1. Check this article "Actions to Avoid while Using TaroWorks" and make sure you are not doing them.
2. Make sure that all your objects involved in the form(s) and job(s) are set to "Deployed" and not "In development". (See picture below)

The auto-close of Job is triggered by an action in TaroWorks. So if you've performed an "Action to Avoid while using TaroWorks" in the setup menu, the change to objects and fields iteslef does not trigger the closing. Subsequently, when a mobile user tries to sync with the broken Job or Form Version, or if a back-end user tries to use the broken Job or Form Version, the auto-close would be triggered.