And why do you need to transfer some devices to a new owner? Won't he get them as soon as he moves into your house? That sounds pretty weird. Especially when it comes to the security system.

Thanks everyone for the information you shared! It really helped me out!

were you able to fix it? I'm having a similar issue and I'm don't know what else to do

Thanks everyone for your answers, I was having a similar issue and you guys helped me a lot!