No.12881584 ViewReplyOriginalReport
I don't think Orange's Geass Canceller is powerful enough to remove all of the Geasses Lelouch has used now.

Ever since his Geass went out of control, the "mind circuitry reconfiguration" animation has changed, more of the brain gets hardwired now because Lelouch's Geass is much more powerful. However, when Orange undoes the Geass on Shirley, it's the original circuitry animation from R1, not the current one issued by post-Kamenejima Lelouch.

I think V.V. set up Orange so he could challenge Zero to a showdown. Orange is walking into a lion's den thinking he has a loaded gun, but it's not filled with gunpowder but babypowder.