Cannot move on slope with capsule character controller

Hello,

I am using Roblox’s physics character controller and can’t seem to get slopes to work with a capsule hitbox. As you can see in the video, first is the normal Roblox character sliding down a slope, able to control their movement. However, after, I show my character controller, and the character has zero control over their movement. The problem is not the sliding on the slope, I know how to handle that. It is that the player is unable to move while on a slope. The problem is not that the character controller is mistakenly in “Air” mode either, it is using the ground controller as suggested by the output.

I believe that the capsule hitbox is causing the issue here.

How would I fix this? Thank you.