Description
In IR 1.10.0 of newer Minecraft versions like 1.14.4 and 1.16.5, when the game language is switched to Simplified Chinese, all chinese characters are displayed in a mess due to the decoding system (UTF-8 characters are decoded as GBK characters), but in older Minecraft versions(like 1.12.2) and older IR versions(like 1.9.1) , this problem doesn't exist.

How to fix
There are two possible ways to fix this:
1.Add back the language file zh_cn.json(replaces zh_cn.lang).
2.Change all the simplified chinese characters into unicode(starting with \u, like \u4f60\u597d)

大佬谢谢你，找了半天终于有解决办法了