Until the arrival of the destination, there is no problem.
Even after the task of drawing a route of 1600km in the target area, everythingw is okay.
After that the route is driven so about after 300km -500km comes the task to select the radio operator and then to command the red arrow or radio station. After clicking on the radio station then happens the problem that everything goes in extreme slow motion.
When the radio operator finally arrives, the red arrow does not disappear, the slow motion remains and the training does not continue until completion. So you can never finish it.