Road turntable + Terence turntable help

I actually like the set. Thinking about buying another one to expand my layout with 2 set so if I get another one I could look at both to see what the problem. I've posted video just turntable with no gears in turntable.
https://youtu.be/IWlTGlOD0yw

Also I thought to make little layout out of this set