I have an xref Survey drawing that I have associated the surface to the project drawing. The problem is that the tin model is not shown in the original survey and I cannot get it to turn on in the original survey. But the tin is visible in the design drawing in which the survey is xrefenced, I have looked at the display options for the surface and have turned it to no display, and have turned all layers that seem to reference tins or contours to no avail, any suggestions?