Hello Sneaksie, I finally find the way to make it work.
It seems that's JSH1.0 is in conflict with it. I completely deinstall it and now, its working. JSH1.0 change some parameters in each missions of the game. Perhaps this is the problem.
I think possible too it could be the Icons mods. Otherwise, I gonna to reinstall completely the game and report here what is the exact problem.
Reichenberg, verify that you have well activate the paramteres in options menus to see arrows
I advice you to deinstall completely the game and reinstall it properly without any mods.
Wathever the problem, I don't see the real utility of the new Los because it's implemented with the old localisation system ( red arrow ). When you launch a mission, you could not profit of this system to place your units before start the game. It's look like a little bit to Close Combat LoS system, but Close Combat assume it completely.