Node Up and Down Alert

I am using Elastic Cloud v8.8 and i want to create an alert for node up and down status using kibana alert. Please see the below screenshots.

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I am getting alert when node is down or reboot

As you can see i am getting alert and there is one time issue is there at 2:55 PM this alert was triggered but in the message body it is showing 8:54 AM.

And i am also not getting alert for recovered when nodes comes back again

Please suggest me with these two issue

Anyone knows