You should be able to reproduce it on the cheetah, make a duplicate of the fat_tissue and name it 'fat_tissue_new',
select the original 'fat_tissue' and run
import zBuilder.builders.ziva as zva
z = zva.Ziva()
z.retrieve_from_scene_selection()
Then remove the fat_tissue and delete it from your scene, rename fat_tissue_new to fat_tissue and run z.build()
and the material layers on the new fat_tissue, inner_pressure and inner_no_pressure will be out of order.