Why does the unit manager on supreme commander forged alliance not work?

In "Supreme Commander: Forged Alliance," the unit manager may not work due to issues like a corrupted game installation, outdated drivers, or conflicts with mods. Players should ensure their game is fully updated and check if any modifications are causing the problem. Additionally, resetting the game settings or reinstalling the game might resolve the issue. If problems persist, consulting the game's community forums for specific fixes can also be helpful.