I managed to fix the problem!
even though I changed my system locale it was having issues.
however, using this program then running it in Japanese locale admin made it use the entire text box and the text was now fixed. This is the second time I have played this the first time was on my older pc so maybe it was an issue with windows 10s language packs. (no idea to be honest)
here is the locale emulator program I used to fix it. https://github.com/xupefei/Locale-Emulator/releases