Webhook continuously triggers automation

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I set up Unifi Protect to send a Webhook to HA if one of my cameras detects a motion. This Webhook is then used in an automation to display a message on my Pixel Clock (AWTRIX). The issue is, that the Webhook triggers continuously after the motion took place. So this automation is useless right now.

Is there a possibility that the Webhook is only triggered once or at least for a predefined duration?

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Does it seem like the issue is on the Protect side? Sending multiple we hooks for a certain event? Or on the HA side?

I know in the web UI for protect, you can set an alert not to retrigger for a certain amount of minutes. I use it for face detections, not sure if it would work for webhooks