Problem with importing assembly from creo

[xefyros]

hello, I have a problem with importing my assembly to keyshot, I only have to parts, one "body" and then two wheels that is attaches to the body, but when i improt the assembly it is only thr wheels that is imported.
I have the creo plugin from creo to keyshot so that can't be the problem.
I attach the files so you can see for yourself.

[guest84672]

Can you please attach the assembly?