[Question]: Eufy Camera Person Detection / Sensor - Not working, why?

[muenchen1]

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I followed the video Home Assistant Setup with Eufy Doorbell: Notifications & Live Stream to set up my eufy cameras within Home Assistant. All my eufy cameras are shown in "Eufy Security". @bropat and @fuatakgun great work. Thank you very much!

Problem:
Unfortunately, "Person detected" does not work, why?
I would like to set up some automations based on "Person detected" as mentioned in the video.

All my eufy cameras are logging every now and then (every 3 to 4 hours) alternately (1 to 4 times) "Wurde nicht verfügbar" = "Was not available" and "Wurde frei (keine Bewertung erkannt)" = "Was released (nothing detected)".

Nevertheless, the iOS App "eufy Security" identifies a Person in front of the camera as event (I tested it several times). It seems that this information is not available within Home Assistant.
Any ideas how to solve this problem?
Do I need to change any of my settings?
Could it be, that having more than one camera, that are too much information to be processed?