No need to rescale the smoothing lengths from the glass file.

examples/SmoothedMetallicity/smoothed_metallicity.yml

@@ -31,5 +31,4 @@ SPH:
 # Parameters related to the initial conditions
 InitialConditions:
   file_name:  ./smoothed_metallicity.hdf5          # The file to read
-  h_scaling:           3.33