I will try to work with just cubes for the simulation first as that’s what the guy in the tutorial did anyways and I think you are on to something omar about starting a new file after the simulation setup. But how do I change all instances to a box shape then the convex hull? All would be selected with a red outline and only the one orange outline would change the shape from a convex to box. I think there is a way to get that working though with the selection. But maybe I need to start the sim with a cube and maybe zero size randomness until I am ready to switch to a sphere? Keep the instances in the particle system below 100 and duplicate the layers? I will try some more things tomorrow.
