Scheduled Script Just Stopping

Hi--

So I've built out a templating system that makes use of advanced projects and compliments the workflow of our business.  It allows us to define template projects, role (not NetSuite role) based task assignment and also copy 'sub-template' tasks into an existing project all the while ensuring the proper relationships between transactions and customers are maintained.  And it works pretty well, too... or at least that was until today.

Today, I run a test and rather than getting the template project and its tasks copied to completion as it has many times before, my script makes it through 4/5ths of its processing and then just stops.  No error, no alert, no email notice, no log entries... it just stops.  The way this process works is that a workflow attaches a 'Create Project' button on an opportunity where the template to use is identified; when someone presses the button the workflow (via a workflow action) calls a scheduled script and passes it some parameters.  Up until the point where the