ManlyMarco

It should scroll like any other application. It could be game specific but I don't think any Valheim players mentioned it, so maybe it's related to running on Linux in...

Move the game to a directory without any Japanese characters in the path.

Honestly, this is super low priority to me. Whenever I try out using linux as a desktop system I guess.

Show how it looks and what's in the translation file.

Looks to be an issue specific to your game, probably game code replaces text on controls and autotranslator translated the tag making the replace fail. Try making it translate to...

Did you place it in a file with name that ends with `resizer.txt`? You also might need to restart the game to see effects.