You are trying to show lower case letters, while your FontCreator screenshot shows outlines only for the capital letter J.
So please ensure you have actually added outlines to the specific characters.
Also do take some time to set correct left and (especially) right side bearings.
Another thing worth mentioning is the tutorials that help you make perfect imports from either vector and raster based images into your glyph outlines:
From Vector (e.g. an Adobe Illustrator image) to Font
Import Images the Right Way (Size Does Matter!)