Yes, I found this bug a month or two ago. Unfortunately, rather than keeping the effects of these files local to the airport they are in, the last read file is used for the installation. I submitted the bug to Zendesk, so they know about it. You should probably submit one, too. The more people who complain about it the better.
The whole Living World concept is borked since you can’t have a services / living world config that only works at a local airport.
I imagine the possibility exists we could learn how to write services and create special parking and maybe there’s some logical way to manage services which reduces traffic on our airports but leaves the normal services intact at other airports. But that’s beyond my ken.