You can find the geometry here:
https://drive.google.com/drive/folders/1Uq6YFTT60u1d9zXnOpgDXDWarG4IgT6D?usp=sharing
I’m having the problem I had here: Meshing Fail: Cell Zones Assigned Using Faces - #33 by DaleKramer and I’m trying to isolate the body causing the issues. I’ve concluded it is likely the chassis, hence the above model does not include the chassis. I was trying to upload it to see if all bodies show up as separate volumes, for me to conclude the chassis is indeed the problem and needs to be redone.