Motor6D Part's Keyframe Refuses To Show In Animation Editor

The Rig

image

Tool + Weld Info

Animation Timeline

Despite there being an option to add it, when clicked on it actually never appears in the timeline.

I’ve set the PrimaryPart of the model to HumanoidRootPart, and made sure the HRP joint is correctly set up. Anyone got a clue how to fix this?

Model Download

TemplateR6.rbxm (58.0 KB)