X y and n are usually placeholders for the numbers you want there and they need to be replaced by the numbers that are correct for your game before the notetags can work.
And any notetag missing its data can cause the entire notetags to abort.
So please replace all placeholders with the correct entries and then check again.
Decided to work on Fandom Scouts today. I've decided that instead of using the generic "scrolling text" event that MV has (I'm using MV for FS, not MZ) I'll use the movie option. I'm still trying to find a way to get Premiere Pro to output the compatible format though. If anyone can give me some help, it would be greatly appreciated!