Joints 2D not working. Don't even show gizmos.

Unity Engine
1

Referring to this Unity tutorial - https://www.youtube.com/watch?v=zvHB1fsRadQ

It literally doesn’t work. I create a new empty project and add two sprites. On one, I add a Collider 2D, Rigidbody 2D, and make it Kinematic. On the second positioned below the first, I add Collider 2D, RB2D of mass 5, and Spring joint of length 5, just like the YouTube tute. I set the Spring target to the Kinematic object. I see no gizmos in the Scene viewer even though Gizmos are explicitly enabled, including a tick-box in the joint option. I run the scene. The spring instantly extends to its length with no bounce.

Am I missing something, or is there catastrophic bug in operation?

Edit : I’m using Unity 4.3.4f on Win7 64bit

2

I confirm the gizmos not showing up. I did all of the above too.

On windows 8.1 x64

3

Gizmo’s are now showing. Maybe it was a 4.5 feature that the YT video showed? Spring is solved by changing the Damping Ratio right down. The default value of 10 kills the bounce. Set it nearer 2 and it works as expected (although note it’s a ‘solid’ spring along a direction. It’s not a flexible piece of elastic and the sprung object will be pushed upwards).