I have no clue what is happening here. I was making a custom character system and when I parented the character’s dummy, all the player parts disappeared unless it was anchored. After that, I completely removed everything in my game with nothing but a baseplate and a fresh dummy added from the Rig Builder plugin.
The problem had nothing to do with my scripts. As you can see in the video, when I unanchor the dummy, all the body parts disappear. Has anyone else experienced this?
EDIT: This happens with any unanchored part, so instead of falling it just disappears. I fixed it by copying everything over to a new place. Annoying bug.