I unbound all targeting functions on my minion and still nothing.

*edit: More troubleshooting. If I make my macro:
Code:
#showtooltip 
/focus Kelseer 
/cast [target=focustarget] Corruption
it STILL won't work. Focus is set as evidence by the 4 spells that do work through macros. Also, if I go to my minions screen and type out the exact same command, it works. And if it makes any difference, I'm using HotkeyNet to broadcast my keystrokes. I'm at a complete loss here.