Thanks, I just noticed this while doing some animation with this rig and was wondering how I'd go about fixing this. Didn't really know about that, handy tip to keep in the back of my mind from now on

I've also realised that actually moving bones in smartbones has created issues for myself with animation later on(Eg, moving the arms across).
Probably a better idea to animate that later on, and just focus on the layer ordering, etc.