I have a hunch for you to try...
The email that you showed has "Log ID = 2000" and "Type = Correlated". That means that the automatic reaction was triggered on a correlated log, instead of on the original Anti-Bot log. The correlated log has only partial information, not the full info of the original log.
Correlated logs aren't meant to be used for automatic reactions or further correlation (it can become recursive...). That's why in SmartEvent Event Policy there is a definition for "Global Exclusions" and the default is to exclude events with "Log ID = 2000" (see screenshot).
Is it possible that you deleted this default filter or deactivated it?