when I attempt to direct my vehicles to move they do, the problem is that once they arrive they disappear and go back to where they began to repeat the journey. This turns into a loop which despite my best efforts won't stop.
Do you have them on park? Sometimes, when directing a bot to move somewhere, it will miss the command and negate the order it was given; when that happens, I have to re-select all of that bot type and repeat the order, sometimes multiple times.
(Spends life on forums)