You know, you can edit your posts to add to them. Just saying....
Anyway, the first YouTube link (showing your current problem) looks like a spacing issue.
Possible causes are that you are manually setting the spacing between the characters (there is a command that changes that).
Or the subimages.txt file associated with your font .png file is not correct.
Or, not having a subimages.txt file associated with it, your font .png file is for a non-fixed font and AppGameKit is trying to make it a fixed font (because it doesn't have information telling it otherwise).
If your font file is not a fixed font, you must provide a subimages.txt file that tells AppGameKit how to extract the letters in your font file. If the font file is named 'xyz.png', the subimage file is named 'xyz subimages.txt' (yes, there is a space between 'xyz' and 'subimages').
Cheers,
Ancient Lady
AGK Community Tester and AppGameKit Master