Tor browser fails to start when configured to use an external tor instance
I have configured Tor browser to use an independent Tor instance in my local network by changing the SOCKS5 proxy. Problem is, if there is such instance configured in Tor browser's Network settings, the startup will fail next time, since the included instance can not start listening on an interface that does not exist on the local machine.
Also, if I want to do the same with an instance running on the local machine, the included instance will also fail to start due to port conflict. Is there a correct way to do this?