Overlapping text in names

I've been working on a mod relocalising the Mandarin pinyin words in TW3K into more historically appropriate Old Chinese. This seemed to be going fine until I replaced the names localisation file all at once, and now, uh...

https://i.imgur.com/o3x9mU9.jpg

Character names, and faction names, are... overlapping? This also happens on the faction selection screen with the characters' names written in Chinese logograms.

Anyone got any clue what's causing this? It's... perplexing.