|Title||Fix exception in rule based notifiations with Nagios core and event type filter|
|Checkmk Edition||Checkmk Raw Edition (CRE)|
|Compatibility||Compatible - no manual interaction needed|
When using Nagios as a core and the list of allowed events contains flapping or downtime events and the previous hard state cannot correctly be determined (due to max_check_attempts being greater as) then an exception could have happened. This has been fixed.