BZ-1015453 - Simulation ignores Event Definitions
(cherry picked from commit 6bbf42f78a1e966df21f48c3c677b3740f94f948)
BZ-1002054 - If simulation engine failed then regular user does not know why
(cherry picked from commit 7aca544236890cf0f0c48a5f8f28a35776f9149c)