Unifi Protect / Device list origin

Hi!
Unifi Protect now allows to add Third party Cameras to their application.

It seems I have/had a bug, where the same camera has been detected again and again filling my Unifi Protect device list. The IP did not change, but every time a new MAC adress has been detected. (This is a Protect Issue)

Now to Homeassistant:
This had the following result:

Does anybody know the file path, where this list is taken from inside of the Unifi Device?
I have a UDM Pro and I already found the camera.json in /etc/unifi-protect/jsonDb.
After clearing this file, I still see all the device entries in HomeAssistant.

My System
UDMPro 4.0.20 with Protect 5.0.35 (EA)
HA2024.10.1