The TUZ 16 has intermittent grip problems when the special mud tires are equipped. The 39, 43, 47 inch AMHS 1.
It's either the tires or the transmission is having issues engaging properly.
TUZ 16 Special/Mud Tires Issues
Problem was already reported in this thread:
https://forums.focus-home.com/topic/51683/tuz-16-conflict-of-wheels
It's still not fixed in 6.2 and it's all tries not just AMHS