Oculus Breaks Hydra controls

Hey there.
No idea why I'm having this issue as last night it seemed to work fine.
Basically when I drag in the Oculus Controller in Unity and put in my Hydra prefab with a hand to move about, the hand doesn't get picked up. Pressed start does nothing.
However when I disable the oculus prefab and try it with just one camera it seems to work.
Any ideas?