@Partel-Lang I didn't have a chance to figure out the jittering, cause I noticed this happening randomly. I changed the model, but copied all the configurations, so I don't understand why it's floating above the ground. It's fine while I'm sitting, but it's floating when I stand. https://imgur.com/a/jApHhm6 Also, I don't know whether it's related, and I can't replicate it, but on my testers's computer, he falls through the floor on a scene change. I don't change anything in the body's configuration, but in the Main Menu, it's fine, but in any other scene, he falls through the floor. This does not happen for me.