No floor heat

I am not getting any heat on either the driver side or passenger side floor when
it’s turned on “floor heat.” Heat works normally on defrost and dash settings
but when turned on floor heat it will blow out of the defrost instead.

I’ve looked under the dash (right of the gas pedal) by pulling away the felt and
can see the two actuators. One that moves the blend door and one that moves
the mode door. I can see the gear moving normally when the blend door
(hot/cold) dial is adjusted on the dash but I can’t see well enough to determine
if the mode gear is moving.

I would assume it is “mostly” working because I can change from defrost to
dash heat/ac without issues. However, I can’t understand why it won’t kick to
floor heat when I move the dial to that setting.

I’ve purchased an actuator to replace it, but am wondering if that will actually
solve it since the current actuator seems to be mostly working. Could the
problem be something else like a broken gear tooth which would prevent floor
heat from engaging?

Any thoughts?

Thanks!

https://imgur.com/98y2dGB
https://imgur.com/2YYnTOP
]https://imgur.com/urssFDh