Did PickupSpell function change?

[Brillynt]

I have a addon the places all of my spells in my action buttons and now it is not working. I can see the correct spell id that I am passing to PickupSpell.
If I do the following code :

ClearCursor();
PickupSpell(iSpellID, BOOKTYPE_SPELL);
local stype, data, subType = GetCursorInfo();

stype, data, subType all come back as nil.

So my question is did the inputs to PickupSpell function change?