Hi Brad,
Thanks for getting back to me so fast. The mat_powerlaw.spatialdb file I am using is the exact same as in hex8, so there are no zero values. By “You should also check to make sure the spatial database spans your domain.” do you mean verifying whether I am actually assigning the spatialdb properties to the appropriate section of the mesh? I am calling the spatialdb file the same way as in hex8 step8 except for assigning it to the upper crust instead of the lower crust. I copy-pasted the spatialdb folder from hex8 to my working domain so the same databases should be accessible.
Thanks,
Alba