I cannot get my Jetbot to work in the Road Following example. It works in the rest of the examples. I’ve gone through the data collection and training, all on the Jetbot. When running the live demo it goes every which way but where it is supposed to. It was mention in at least one thread that it worked in the version based on Jetpack 4.2. I’ve flashed the version based on Jetpack 4.2 several times, but it won’t install. I’m a newbie, do I have to install Jetpack 4.2 first?