Hmmm… so then it’s likely something with how the plugin moves things. Could you take a peak into the plugins code to check and see what movement method it uses if it uses standard nodes? (Don’t post their source code here since it’s a paid plugin and against TOS, but the method like local/world position offsets etc.) It might provide a bit of insight for you. That said, I don’t currently know of any methods that detach children without changing their world position/local position that isn’t like world position offset in the material, but surely they aren’t using that for car braking.