Unrealistically high ADP scattering

Hello,
I’m calculating scattering in a family of oxide materials, and I’m consistently getting very high ADP scattering leading to calculated mobilities ~8 orders of magnitude lower than experiment. Does anyone know of some basic “sanity checks” I can do with my deformation potentials and elastic constants to see if there is a problem with those calculations? Or alternately, if there are any classes of materials where ADP scattering should not be considered?
My deformation tensors are
[[ 0.67 2.65 0.03]
[ 2.65 0.67 0.03]
[ 0.03 0.03 1.19]]
for VBM and
[[ 1.92 0.05 0.05]
[ 0.05 1.92 0.05]
[ 0.05 0.05 1.92]]
for CBM, while my elastic 6x6 matrix (including ionic relaxation contribution) in GPa is
[
[193.95973, 136.1056, 136.19056, -0.0000, -0.0000, 0.0000],
[136.19056, 193.95973, 136.19056, -0.0000, 0.0000, 0.0000],
[136.19056, 136.19056, 193.95973, -0.0000, -0.0000, 0.0000],
[-0.0000, -0.0000, -0.0000, 83.82644, 0.0000, 0.0000],
[-0.0000, 0.0000, -0.0000, 0.0000, 83.82644, 0.0000],
[0.0000, 0.0000, 0.0000, 0.0000, 0.0000, 83.82644]
]

Thanks

Thanks