I found a problem, the game is quite buggy after I switch between the old and new version, many things don't work properly in the new version, the screen is black but you can still hear the game running. In the old version, the game is still playable but many things don't work properly.(The reason I alternate between the old and new versions is because each version has some unique features that are added and some that are missing that cannot be found in the new versions.)(I use Google Translate.)