I found weird thins happening in some projects. RC generates shifts on flat surfaces, which definitely do not exist there in real world. I am quite sure that there is no problem with overlap (see screenshots). All photos were taken by single camera in few circles around the objects in different heights.
Enable Inspector tool. And you will see that cameras that used for this part of surface have separate island group, or just alone. This mean cameras not connected right with other, not enough overlap. And as result alignment error first and mesh shift in final. Sometime you can add control points to images between this islands to connect them and fix alignment error. But if possible better shoot more images around this shift.