So I'm trying to run a simulation for the attached file, but every time I run the simulation after meshing SW crashses. Every single time. The only workaround was for me to mesh certain parts of the body as a solid and then ignore it from the simulation. Can anyone help me? I've been trying to find a solution for a while now but I've come short.

More Info:

The simulation I was trying to run is to fix the bottom tubes of the chassis and apply a load of 80kg on the belly bars of the chassis (the 2 set of tubes attached to the bottom of the chassis).

Regardless of the simulation I have not been able to get this to work. Maybe someone can run the file and see if it is working for them?