It can be due to many reasons.
The resource PC would likely crash when it encounters an unhandled exception. Have a Recover & Resume block in your master process and on Resume, log an error message with the exception details and continue on with the next run.------------------------------
------------------------------
Vipul Tiwari
Senior Process Simplification and Optimization Designer(Solutions Architect)
Fidelity International
------------------------------
------------------------------
------------------------------
Vipul Tiwari
Senior Process Simplification Developer
Amazon
------------------------------