I've found a few of the vehicles where follow just will not work.

With most of them, my targettarget system will allow me to follow my current target.
With a few, I have to use Focus to follow, but can follow my focus.

With some, follow just will not work.
Running one toon 50 feet or 200 or whatever.
Then go to the next window and repeat.
Then the next window and repeat.
Then the next window and repeat.
Then the 5th window and repeat.

Then the first window and 200 more feet.
Then the...

A piece of shit design, whoever implemented thse.