Skinned Mesh rig falls through the floor

[IdontPlayz343 (FPS Enjoyer)]

I want my character to not fall through the floor.

However, it does:

How do I fix this?

I have disabled AutoScaling, and nothing in the character has collision. (If it had collision, the ai couldn’t move, but it also can’t move bc of this so idk what to do.) I have set the hip height to different amounts, and it had no effect.

Setup:

Humanoid properties:

The RootPart:

[IdontPlayz343 (FPS Enjoyer)]

Fixed, name the RootPart to HumanoidRootPart to fix this.