Problem with Mecanum wheels

Other Hardware Motors, Mechanics, Power and CNC
1

Hi everybody,
I have built a mecanum wheel robot, I have used sparkfun wheels : Mecanum wheels - 4 pack (Sale) - ROB-10543 - SparkFun Electronics
The robot goes forward and backward very well , but it wiggles when in left and right motion.

IAny idea what the problem can be ?

2

I assume you read the "Notes:" section on the website about lateral motion?