[Question] WebHook FilteredEvent Blocklist

[legmelca]

Hello,

On TheHive4 webhooks, we're struggling with FilteredEvent. We'd like to blocklist only events from "objectType": "case_artifact", however we don't get any events with the following value:

{
  "value": [
    {
      "delegate": false,
      "trigger": [
        {
          "name": "AnyEvent"
        },
        {
          "name": "FilteredEvent",
          "filter": {
            "_and": [
              {
                "_not": {
                  "objectType": "case_artifact"
                }
              }
            ]
          }
        }
      ],
      "notifier": {
        "name": "webhook",
        "endpoint": "Dev"
      }
    }
  ]
}

We also tried the following value but it didn't work:

{
  "value": [
    {
      "delegate": false,
      "trigger": 
        {
          "name": "FilteredEvent",
          "filter": {
            "_and": [
              {
                "_not": {
                  "objectType": "case_artifact"
                }
              }
            ]
          }
        },
      "notifier": {
        "name": "webhook",
        "endpoint": "Dev"
      }
    }
  ]
}

Is there a way to trigger any webhook event except for the observables ones?

Thank you