Robot control issue running RL with Isaac Gym

Hi, I’m following this tutorial to train a RL navigation policy.
https://docs.omniverse.nvidia.com/isaacsim/latest/isaac_gym_tutorials/tutorial_advanced_rl_stable_baselines.html
I can run with the default jetbot but I want to change to Dingo which is also in the assets. It turns out that the behavior of Dingo is somehow weird so I went back to the basic move.py to see what’s going on.
I modified this line according to Dingo’s specifications:

my_controller = DifferentialController(name=“simple_control”, wheel_radius=0.029, wheel_base=0.45232)


Then I found out that when I sent forward command to Dingo it was not moving straightward but with deviation.
Can someone help me with this issue? Thanks in advance.

Here is a video I recorded.