It looks like you are running into the same problem as in this post: Stresses from ANSYS .rst are displayed as NaN
A quick summary: your data has quadratic elements. The tetrahedra have 10 values: 4 for each vertex and 6 for each edge. Some of your fields (e.g., Nodal Solution 0) have values for all 10 control points. However, other fields (e.g., Mises) only have values for the 4 vertices. The values for the edges are set to 0, which messes up the quadratic interpolation in the cell. The easiest solution is to set the Nonlinear Subdivision Level display parameter to 0.
