(only some) objects not colliding with wall, going through it

Support Particles and Physics Simulations
1

Whats the issue?
Both the balls and the walls are “Mesh” type rigid bodies, only balls are “active” (react to gravity).

http://www.pasteall.org/blend/35283

2

The balls have a scale of 0.541, the chute has a scale of 1.476 and the container has a scale of 2.06.
All objects should have a scale of 1. Select all objects and apply their scale with Ctrl+A

Screen Shot 2015-03-29 at 12.17.29.jpg638×831 81.3 KB

3

Thank you.
Any reason the collision system doesnt like scaled objects? Bug or a nature of physics engines?