Device Trackers (Owntracks and Unifi)

I just updated from .93 to .98. Obviously a lot has changed with the device trackers as nothing I had set up is working now. I know I need to setup “Persons” now and put my devices in there and use that to set the pictures for people (via customization).
What I’m stuck at is it recreated all my devices so now there are two of most things and the Unifi updates pulled all kinds of junk into Home Assistant. I thought I disabled auto adding stuff and deleted everything, but it looks like it pulled it all back in again, at least it’s showing in the registry thing. That’s not really my concern right now other than figuring out adding the phones “new” wifi device to the persons (though if someone knows how to configure that in the yaml files, that would be awesome, I much prefer having control over stuff). As best I can tell (and if I recall correctly), known_devices.yaml is retired.
My concern right now is how do I delete the old owntracks “devices” so I can set the new devices to those names so I don’t have to redo all my NodeRed flows and such.

Figured out how to get rid of the duplicate devices, while known_devices isn’t used for configuration, it apparently still imports devices from it, so I had to clear those out.