The Retina II Type 011 was designed with a double exposure prevention that kinda requires film to be loaded.
If you are testing it without film, you need to,
1- Open back
2- Turn wind knob
3- Manually advance sprocketed roller until it stops
4- cock the shutter
It should allow the shutter button to trigger the shutter now.
Hope that is helpful,
Edit: Just watched your video. It actually looks like it's working properly. IIRC the Retina II frame counter counts upwards from 0, whereas the Retina III counter counts downwards from 36. If you set the counter to 0 it should wind smoother.
If you're gonna shoot, shoot, don't talk.