Siren.Enternius said:
I have no idea why, but if you hit Ctrl M ingame to bring up the full magic list, En-spell II are actually listed AFTER Summoning spells, so that could potentially be why but I can't see a reason why that would be like that, nor why it wouldn't work.
That shouldn't make a difference, but the Magic List order is all based off how you personally have it set.
My Tier2 Enspell is next to my Tier1.