Hello everyone!
I have done tens of simulations of similar model cars to this one, which have always worked flawlessly (in the beginning, I followed the tutorial “aerodynamics of a car” and then at some point just started doing it from memory. Now, I prepared the model as usual, creating an external flow volume and then deleting the car from the scene. For some reason however, part of the car axle just disappears when I do that. You can find a before and after picture below.
I have no idea what is happening or how to fix it and would appreciate any help!
