I have a 3D part that was 2D surfaced meshed and then 3D elements created.
It seems as if the stress contour results were set-up on the 2D mesh only.
Meaning the interior of the part does not have results, only the "skin"
Why would it be set up this way ?
Hypermesh using Abaqus
Make sure you are requesting the correct results output. And make sure you are contouring the correct results output. It would be helpful if you share a picture.