Since font information in the initial state is not present, Japanese is not displayed.
You can display it by append following A to B, but I want to the initial state this in 0.14.4.
A = {
[font]
default=__core__/locale/ja/fonts/regular.ttf
default-bold=__core__/locale/ja/fonts/bold.ttf
default-semibold=__core__/locale/ja/fonts/medium.ttf
}
B = 'factorio_0.14.3/data/core/locale/ja/core.cfg';
Otherwise, multiplayer gets confused you change more than that from 0.14.2.
