Hi! Not the dev but I can help with this one.
Make sure there's no empty spaces or line breaks before or after the text, like in the example image below: (Ignore the 1 and 2, that's just my text editor's line counter.)

Hope that helps!
(Note for anyone else struggling with this, specially if running under linux/wine: Make sure the txt file is saved with CR LF line endings, just tried this quest on my linux machine and it didn't get recognized by game until I did that.)
and file location in core of games folder or in another folder in the files?
