Can't animate the torso on a rig

Hello, I’m trying to make a game about fighting on horses with guns. I rigged the horse and tried to test out the rig and BOOM! I cannot move the torso at all, I have the RootJoint in the HRP (like the normal minifig-like rigs) and everything is unanchored.
I even tried redoing the rigging and restarting roblox studio but I still have the problem of the torso not moving. Anybody knows how to fix this?

I have provided an image below:

Is it due to other welds in the horse between the HRP and the Torso that are locking them together?

i’m not sure, but there is a weld between the torso and the saddle, then 2 more welds with the saddle and 2 different pouches.

If the saddle and pouches are supposed to be attached to the Torso (I’m guessing yes) then it should work fine.
I haven’t done much Animation, but when I did all my other joints were listed in the animation tool bar at the bottom of the screen.