This is the way it is intended by Apple. I made the same experience moving to a different country and changing the "nationality" of my Apple ID. When contactin

This is the way it is intended by Apple. I made the same experience moving to a different country and changing the "nationality" of my Apple ID. When contacting customer support about all my missing purchases, they said that this was standard procedure. It seems that Apple basically stores a country flag in your account, then everything you see and buy applies to that flag only. When you change country, you get a different "walled garden". You still somehow "own" all the content, you just can't see all of it. If you try to e.g. install an app you bought when registered in a different country Apple will give it to you for free stating that the purchase has been restored because you have already bought it. It still won't show up in the purchased items list. I suspect if one were to switch back, it would go back and show all old purchases but not the recent ones from the last region. This seems to be their current implementation which they also seem happy with. It's really sorry state, because so many people move between countries these days and this is very unintuitive and causes a lot of annoyance.