I've changed the title so that can be preciser.
I notice that the new version of Microsoft Bopomofo (feature in v2004) can't lock the Chinese input. The solution for now is to get a English IME in Windows 10's settings, and switch to it by pressing Alt+Shift for using Ctrl properly in Minecraft.
Sum: It caused by Windows 10 v2004's new Bopomofo IME.
@omer gur
It's not about hunger but IME.
FYI, there is one more case on a Taiwanese forum.
@Marty McFly.
Yes, it works on Chrome or any other apps.
@Marty McFly
Keeping the same, nothing happened.
PS. Before this test, I changed JAVA to the built-in.
By the way, in a Taiwanese group, on Facebook, a player said that his Ctrl is broken after upgrading to Windows 10 from Windows 7.
@Anthony Cicinelli
All keybind are set to default.
@violine1101
Ctrl just doesn't work at all. E.g., Ctrl+A/V (in chat), Running (in game).
I don't have a different keyboard so I can't do that test for you.
I think that font of Simplified Chinese doesn't need to be changed, and Traditional one is going to follow Taiwanese Ministry of Education's standard form. This change should apply to all the other products, like Launcher.
Umm... as Hong Kong and Macau is controlled by the government of Mainland China, they should use the current one. However, there's only one version of Traditional Chinese, using "Standard Form of Taiwanese Ministry of Education" will make them follow Taiwanese government.
Answer: It's former. Please refer to: https://www.google.com/get/noto/help/cjk/
Sorry, maybe I didn't make it clear. It's not a "adding or suggesting translations" problem. Crowdin only handles translating things. Which font should be used is depends on Mojang, and Mojang uses a wrong one to Traditional Chinese.
I cannot reproduce either. Anyway, here's the seed and the coordinates.
8515963191127634987
2656, ~, -2352