Difference- Process simple Event & process condition event.

Thanks ATP for replying to my below ques.
https://forum-controlsystems.abb.com/...

Can you please help me to understand the below 3 things:
1. for some Process Condition Events, it used to generate Inactive state but is is not happening now.
2. how to define any change in state as "Process Condition Event" as well as process simple event
3. Any manual toprovide information on above 2 cases