Hey,
Linked below is a video where I describe the issue. The basic overview is that my skid-steer rover works fine in manual mode, but in auto modes, it spins in the opposite direction to the way it is meant to go and then starts oscillating. You can see my tunning in the video, if you think it is off please let me know what values you would change. FYI, I have tried reversing the roll axis, but the same issue persists.
Thanks,
James