if you edit out the 'cutting', that cuts parts of the body to avoid clipping, this can happen, some armours and bodies does it even with no edits but its also something that cant be fixed, unless your good with 3D editing tools, you cant do a lot about it, either completely remove the armour in question or apply the cutting rule again. in the rules there's sections, to if its on the leg, allow cutting to happen on said leg. Cutting is a pain though as not all cutting is shown on the '.xml' file, if its not on it your in the same boat as me at the moment, needing a way to edit a texture image without it corrupting when trying to change it back.