[2019] Scout armour mods

Level 170, been playing since the beginning. Have two characters both high health using primarily vanguards marine armour with one piece of chameleon. Randomly found a two star vanguard scout armour chest piece. It was cheap at someone’s vendor and had ap regen. So I bought it. Tried to mod it. I can craft or mod almost any armour in the game. Cannot do it. Finally after some research realized I need plans from the enclave. Server hopped for an hour and got a dense mod and polymer. Go to add them to the chest piece. Dense works but not polymer. After more research it turn out that the mods are somehow not labeled properly. This is incredibly frustrating, is it intentionally done or are the developers too lazy to fix this. It couldn’t be that hard, all other mods are labelled correctly. Does anyone have any insight?