Spell Research

[thewrush]

Upon getting to level 16 the skill Spell Research is trainable. On my wizard I just got the ability and was able to do around 6-7 combines. Although I didn't get a skill up yet, I started to worry when I saw my skill is Red in the window with "15" by it. Yet, when I visit a trainer it shows "16".

I am wondering, is my skill bugged? Shouldn't I have at least gotten a skillup after a few combines? I really need to get it up there in order to get the second best nuke known to Wizards...Ice Comet.