You should be able to see the spell it makes regardless of level, at least, that is how it used to be, and I haven't seen any where to say that this was changed.
I'd say make sure the glyphs are purified first. If I recall correctly, a non purified glyph will be missing a green border around it in the inventory slot. When it's in the process of being purified, there's a grey border, then when it's purified, it becomes a green border.
Or I could just be seeing things.