Eric
Thanks for the time on the phone. As we found there is a bug in this work flow that you are following. For everyone interested the bug is as follows and the fix is explained below
If you run an Earthwork Report between 2 surfaces, TBC builds an Isopach Surface that is listed under Cut Fill Maps in the project Explorer. If you then select it in Project Explorer and open up the Coordinate Scroll and Show Surface / Elevation it is not showing the Surface and Elevation values as Eric highlighted in his post yesterday.
The issue can be seen if you look at the properties Pane for the ISOPACH surface, at the bottom where it lists the surface properties for Triangles, Vertices etc. You will see that despite the Isopach displaying OK and also can show the wireframe, it lists the number of triangles as 0.
If you work around this, you can set the Rebuild method property to Show Empty and then reset it to Auto, the ISOPACH rebuilds and the number of triangles is correct and all is good in the coordinate scroll.
If you build the Cut Fill Map using the Cut Fill Map command it works correctly and does not exhibit the same issue.
Thanks Eric for raising the issue and showing me the work process to recreate - Once I can recreate it it should be easy to get fixed.
Alan