PC SSF4AE Arcade Mode w/ Controller problem!

I’ve scoured the forums of multiple sites and Google searches and have been unable to find a fix.

On the PC version of SSF4AE, when I go to play Arcade Mode with my Xbox controller, I can’t move or do anything in the actual fight. I can pick my characters and moves just fine, I can play any other game mode including online perfectly fine, but when it comes to a fight in Arcade Mode, I cannot attack or move at all and hitting Start triggers Player 2 to enter the fight.

halp