Two hundred file events are ran every 10 minutes. The WPs run for approximately two days before it takes up 16GB of memory and shuts down. Eventually, all the WPs go offline except for the JWP. They stop writing to the logs and the process IDs (PIDs) terminate on the server.
Upgrade the Automation Engine to one of the fixed versions:
Automation Engine 12.0.7 - planned release date ~2019-01-14
Automation Engine 12.1.4 - planned release date ~2019-01-28
Automation Engine 12.2.2 - planned release date ~2019-02-11
Automation Engine 12.3.0 - planned release date ~2019-02-28