I did make a one-timer throw from Raspi4 7.4 version to Unraid 7.5 without any problems in couple minutes. Everything is working fine except WebUI. I did make docker ip address same as Raspi4 had and there is no other apps running in Raspi4 anymore. When I moved Unifi from Ubuntu server to Raspi4, I noticed, that same ip address is most safe way to do it.