The bug
When selecting a language, the scrollbar resets to the top of the list.
Linked issues
is duplicated by 17
MC-148685
Language scrolling up meaning I can not choose the correct language
Resolved
MC-134191
Can't change language on the menu.
Resolved
MC-137167
I can't change ingame language, because it change my option automatically
Resolved
MC-137830
Language Issues
Resolved
MC-138393
So basically I accidentally went into the language menu and it made my language on some weird thing I can't understand.
Resolved
12 more links
Can't reproduce.
If you really want to change the language, open
%appdata%\.minecraft\options.txt, search for string "lang=", find the language file name you want to use, (US english =en_us, polish =pl_pl) type it in, save and restart minecraft. The selected language should be now inside Minecraft.If you need help in determining the language name, feel free to say so.