Netatmo Webhooks are very unstable

I have several Netatmo cameras, both indoor and outside. They are all connected to Home Assistant, and I have established properly webhook connections using my Dev account.

The result is that sometimes I get webhook events, sometimes not. Sometimes I get all events, and at other times, noting at all. I haven't been able to find any pattern in this. It seems completely random. Everything is updated to the most resent versions. In the past week, I only get events everytime one of the cameras disconnect and reconnect, which can happen now and then. But it's been a week or so since I got any human detection events.

I need som advise on how to debug this.